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Search: id:A124707
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| A124707 |
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Number of base 14 circular n-digit numbers with adjacent digits differing by 1 or less. |
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+0
1
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| 1, 14, 40, 92, 244, 644, 1750, 4802, 13324, 37244, 104770, 296222, 841114, 2396954, 6851920, 19639652, 56426044, 162453884, 468581890, 1353822062, 3917298334, 11350084334, 32926503100, 95626832432, 278010277474, 809008239794
(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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Sequence in context: A019063 A101740 A069126 this_sequence A126368 A125816 A105869
Adjacent sequences: A124704 A124705 A124706 this_sequence A124708 A124709 A124710
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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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