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Search: id:A125351
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| A125351 |
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Number of base 14 circular n-digit numbers with adjacent digits differing by 4 or less. |
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+0
1
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| 1, 14, 106, 674, 4946, 37014, 283330, 2196782, 17189858, 135356102, 1070440026, 8490518798, 67481635442, 537075903014, 4278507764938, 34105515215934, 271984108754114, 2169645089403350, 17310883131943930, 138136179160503278
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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[Empirical] a(base,n)=a(base-1,n)+A025014(n+1) for base>=4.int(n/2)+1
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PROGRAM
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(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>4)+($[(i+1)mod N]`-$[i]`>4))
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CROSSREFS
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Sequence in context: A022579 A061179 A076128 this_sequence A126509 A099300 A038735
Adjacent sequences: A125348 A125349 A125350 this_sequence A125352 A125353 A125354
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KEYWORD
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nonn
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AUTHOR
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Ron Hardin (rhh(AT)cadence.com), Dec 28 2006
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