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A125445
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Number of base 10 circular n-digit numbers with adjacent digits differing by 8 or less.
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0
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1, 10, 98, 946, 9282, 91090, 894050, 8775154, 86128770, 845360146, 8297271458, 81438324274, 799323090114, 7845414405202, 77003314367714, 755793144551026, 7418164815900930, 72809828499516562, 714633775022856482
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| [Empirical] a(base,n)=a(base-1,n)+F(8) for base>=8.int(n/2)+1 and F(d) is the largest coefficient in (1+x+...+x^(2d))^n
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PROG
| (S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>8)+($[(i+1)mod N]`-$[i]`>8))
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CROSSREFS
| Sequence in context: A125946 A158513 A125880 * A163446 A190869 A007137
Adjacent sequences: A125442 A125443 A125444 * A125446 A125447 A125448
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KEYWORD
| nonn,base
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AUTHOR
| R. H. Hardin (rhhardin(AT)att.net), Dec 28 2006
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