[M2] (golly 2.0)
#C This produces groups of LWSSs headed west, with gaps of fixed size
#C between them.  The lengths of the groups form the 'ruler' sequence,
#C 1 2 1 3 1 2 1 4 1 2 1 3 1 2 1 5 ... (Sloane's A001511).  The first
#C group of length n is emitted about generation 96*2^n. The pattern
#C uses a Corderman eater puffer found by Paul Tooke (Jan 2004), a
#C p48 glider gun by Noam Elkies (Jun 1997), a p8 glider reflector by
#C Noam Elkies (Sep 1998), and a p24 LWSS puffer (source unknown).
#C Dean Hickerson, 4/20/2005
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4 0 0 0 1
5 0 0 0 2
6 0 0 3 0
7 0 0 4 0
8 0 0 5 0
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4 9 10 11 12
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4 14 15 0 16
5 8 13 0 17
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4 19 0 20 21
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4 0 0 23 24
5 0 0 22 25
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4 27 28 29 30
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4 0 32 0 33
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4 0 35 0 0
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4 37 0 0 0
5 31 34 36 38
6 18 26 0 39
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4 0 0 41 0
5 0 0 42 0
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4 44 45 0 46
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4 48 0 0 0
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4 0 50 51 0
5 47 49 52 0
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4 0 0 0 54
5 0 0 0 55
6 43 0 53 56
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4 58 59 60 61
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4 27 63 64 65
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4 67 68 69 0
5 0 62 66 70
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4 9 72 0 73
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4 75 76 77 78
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4 80 81 0 0
5 74 79 0 82
6 0 71 0 83
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4 0 85 86 87
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4 0 89 90 0
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4 0 92 93 94
5 0 88 91 95
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4 97 98 99 100
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4 102 103 104 105
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4 107 108 109 110
5 101 0 106 111
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4 0 115 116 78
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4 118 0 0 0
5 114 117 119 82
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4 121 122 113 123
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4 125 126 127 0
5 124 128 119 0
6 96 112 120 129
7 40 57 84 130
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4 134 135 136 137
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4 139 0 140 0
5 133 0 138 141
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5 146 151 155 158
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4 160 161 162 163
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6 159 165 0 0
7 143 0 166 0
8 131 167 0 0
9 0 6 0 168