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Search: id:A124998
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| A124998 |
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Number of base 32 circular n-digit numbers with adjacent digits differing by 2 or less. |
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+0
1
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| 1, 32, 154, 578, 2542, 11242, 51004, 234168, 1086342, 5078522, 23889964, 112953048, 536316184, 2555650688, 12215701582, 58545624238, 281245522518, 1353858728442, 6529181968828, 31539774822672, 152581524133232
(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)+A005191(n+1) for base>=2.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]`-$[(i+1)mod N]`>2)+($[(i+1)mod N]`-$[i]`>2))
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CROSSREFS
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Sequence in context: A100165 A100173 A100172 this_sequence A126419 A035286 A029534
Adjacent sequences: A124995 A124996 A124997 this_sequence A124999 A125000 A125001
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KEYWORD
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nonn
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AUTHOR
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Ron Hardin (rhhardin(AT)att.net), Dec 28 2006
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