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A227715
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Triangle read by rows: Number of 2n-step self-avoiding walks on diamond lattice ending at point with x = 2k.
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7
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1, 4, 4, 28, 24, 16, 188, 188, 128, 64, 1428, 1368, 1120, 640, 256, 10708, 10572, 8864, 6208, 3072, 1024, 82948, 81376, 71572, 53376, 32768, 14336, 4096, 644788, 637148, 570512, 453424, 304640, 166912, 65536, 16384, 5067404, 5007560, 4572076, 3762672, 2728256, 1669120
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OFFSET
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0,2
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COMMENTS
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The number of walks ending with x = -k is the same as the number ending with x = k.
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LINKS
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EXAMPLE
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Initial rows (paths of length 0, 2, 4, ...):
{ 1 };
{ 4, 4 };
{ 28, 24, 16 };
{ 188, 188, 128, 64 }.
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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