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Search: id:A006780
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| A006780 |
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Number of n-step spirals on cubic lattice.
(Formerly M4163)
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+0
1
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| 1, 6, 24, 90, 324, 1166, 4138, 14730, 51992, 183898, 646980, 2279702, 8002976, 28127418, 98585096, 345848306, 1210704274, 4241348770, 14833284544
(list; graph; listen)
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OFFSET
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0,2
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REFERENCES
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A. J. Guttmann and K. J. Wallace, On three-dimensional spiral anisotropic self-avoiding walks, J. Phys. A 18 (1985), L1049-L1054.
G. Szekeres and A. J. Guttmann, Spiral self-avoiding walks on the triangular lattice, J. Phys. A 20 (1987), 481-493.
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CROSSREFS
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Sequence in context: A121532 A025472 A002919 this_sequence A001352 A079839 A002023
Adjacent sequences: A006777 A006778 A006779 this_sequence A006781 A006782 A006783
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KEYWORD
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nonn
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AUTHOR
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njas
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