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Search: id:A124717
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| A124717 |
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Number of base 24 circular n-digit numbers with adjacent digits differing by 1 or less. |
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+0
1
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| 1, 24, 70, 162, 434, 1154, 3160, 8732, 24394, 68634, 194300, 552752, 1579004, 4526364, 13014190, 37515722, 108392314, 313803194, 910109980, 2643790592, 7691092024, 22403591624, 65337858370, 190759113662, 557493641284
(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)+A002426(n+1) for base>=1.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]`-$[(i+1)mod N]`>1)+($[(i+1)mod N]`-$[i]`>1))
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CROSSREFS
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Adjacent sequences: A124714 A124715 A124716 this_sequence A124718 A124719 A124720
Sequence in context: A087406 A051876 A069174 this_sequence A126378 A006352 A143337
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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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