A125464 Number of base 29 circular n-digit numbers with adjacent digits differing by 8 or less.

1, 29, 421, 5069, 70837, 1010249, 14740909, 217995737, 3255957037, 48976631435, 740533885451, 11239159868317, 171044330389201, 2608208803392351, 39828729299757791, 608832410638733369, 9313671013658414813

Offset

0,2

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

Links

Table of n, a(n) for n=0..16.

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))

Crossrefs

Sequence in context: A264160 A210302 A163021 * A161572 A161972 A162376

Adjacent sequences: A125461 A125462 A125463 * A125465 A125466 A125467

Keyword

nonn,base

Author

R. H. Hardin, Dec 28 2006

Status

approved