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Search: id:A125343
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| A125343 |
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Number of base 6 circular n-digit numbers with adjacent digits differing by 4 or less. |
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+0
1
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| 1, 6, 34, 186, 1058, 6026, 34354, 195866, 1116738, 6367146, 36302674, 206981946, 1180120418, 6728529866, 38363130994, 218729774426, 1247101396098, 7110426078186, 40540535975314, 231144384189306, 1317884064847778
(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: A126643 A084775 A085351 this_sequence A052264 A049608 A126501
Adjacent sequences: A125340 A125341 A125342 this_sequence A125344 A125345 A125346
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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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