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 A125424 Number of base 12 circular n-digit numbers with adjacent digits differing by 7 or less. 0
 1, 12, 124, 1188, 12356, 129492, 1361746, 14331126, 150856188, 1588078260, 16718137334, 175997231290, 1852781990558, 19504865161846, 205334357806520, 2161624764528348, 22756160755947020, 239561861905201388 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS [Empirical] a(base,n)=a(base-1,n)+F(7) for base>=7.int(n/2)+1 and F(d) is the largest coefficient in (1+x+...+x^(2d))^n LINKS Table of n, a(n) for n=0..17. PROG (S/R) stvar \$[N]:(0..M-1) init \$[]:=0 asgn \$[]->{*} kill +[i in 0..N-1]((\$[i]`-\$[(i+1)mod N]`>7)+(\$[(i+1)mod N]`-\$[i]`>7)) CROSSREFS Sequence in context: A291065 A366634 A273586 * A163147 A120918 A262573 Adjacent sequences: A125421 A125422 A125423 * A125425 A125426 A125427 KEYWORD nonn,base AUTHOR R. H. Hardin, Dec 28 2006 STATUS approved

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Last modified May 26 18:12 EDT 2024. Contains 372840 sequences. (Running on oeis4.)