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Search: id:A098502
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| 12, 28, 44, 60, 76, 92, 108, 124, 140, 156, 172, 188, 204, 220, 236, 252, 268, 284, 300, 316, 332, 348, 364, 380, 396, 412, 428, 444, 460, 476, 492, 508, 524, 540, 556, 572, 588, 604, 620, 636, 652, 668, 684, 700, 716, 732, 748, 764
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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For n>3, the number of squares on the infinite 4-column chessboard at <=n knight moves from any fixed start point.
General form: (q*n-1)*q q=3=A017233, q=4=A098502, ... [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Feb 16 2009]
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LINKS
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Tanya Khovanova, Recursive Sequences
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MATHEMATICA
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q=4; lst={}; Do[AppendTo[lst, (q*n-1)*q], {n, 0, 5!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Feb 16 2009]
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CROSSREFS
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Cf. A098498, A017629, A008590.
Sequence in context: A108405 A044073 A044454 this_sequence A158953 A107707 A126195
Adjacent sequences: A098499 A098500 A098501 this_sequence A098503 A098504 A098505
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KEYWORD
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nonn
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AUTHOR
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Ralf Stephan (ralf(AT)ark.in-berlin.de), Sep 15 2004
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