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Search: id:A125366
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| A125366 |
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Number of base 29 circular n-digit numbers with adjacent digits differing by 4 or less. |
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+0
1
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| 1, 29, 241, 1589, 12281, 96279, 773245, 6293687, 51780089, 429498473, 3585931251, 30099267623, 253765101341, 2147470776077, 18230728488283, 155192678512659, 1324259934723241, 11323518226156213, 97003621972668547
(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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Adjacent sequences: A125363 A125364 A125365 this_sequence A125367 A125368 A125369
Sequence in context: A126426 A126425 A142559 this_sequence A126524 A027939 A142683
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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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