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Search: id:A140476
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| A140476 |
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Number of self-avoiding walks on cubic lattice with no more than n steps. |
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+0
1
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| 1, 7, 37, 187, 913, 4447, 21373, 102763, 490729, 2344615, 11154493, 53088643, 251931385, 1195905895, 5664817573, 26839963627, 126961839601, 600692091703, 2838415775797, 13414448995411, 63331776834145, 299041867336303
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Primes include a(1) = 7, a(2) = 37, a(5) = 4447, a(8) = 102763, a(15) = 26839963627.
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EXAMPLE
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a(9) = 1 + 6 + 30 + 150 + 726 + 3534 + 16926 + 81390 + 387966 + 1853886 = 2344615.
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CROSSREFS
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Partial sums of A001412.
Cf. A001411, A001412, A001413, A002902, A078717.
Sequence in context: A026889 A117424 A037546 this_sequence A057651 A106925 A085640
Adjacent sequences: A140473 A140474 A140475 this_sequence A140477 A140478 A140479
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KEYWORD
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nonn
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AUTHOR
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Jonathan Vos Post (jvospost3(AT)gmail.com), Jun 29 2008
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