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Search: id:A125327
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| A125327 |
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Number of base 17 circular n-digit numbers with adjacent digits differing by 3 or less. |
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+0
1
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| 1, 17, 107, 545, 3235, 19487, 120311, 752895, 4762851, 30376427, 194992877, 1258241573, 8153851075, 53026892117, 345868792705, 2261537247275, 14818530646995, 97269300449331, 639438066653237, 4208955700527261
(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)+A025012(n+1) for base>=3.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]`-$[(i+1)mod N]`>3)+($[(i+1)mod N]`-$[i]`>3))
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CROSSREFS
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Sequence in context: A121823 A142321 A007682 this_sequence A126485 A080441 A135400
Adjacent sequences: A125324 A125325 A125326 this_sequence A125328 A125329 A125330
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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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