A125459 Number of base 24 circular n-digit numbers with adjacent digits differing by 8 or less.

1, 24, 336, 3984, 54432, 759744, 10830144, 156223392, 2271228672, 33183608352, 486349645856, 7142175976960, 105014684996352, 1545275154706944, 22749491302298880, 335018397934911744, 4934548094852111360

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: A188779 A267838 A045543 * A258705 A264454 A077527

Adjacent sequences: A125456 A125457 A125458 * A125460 A125461 A125462

Keyword

nonn,base

Author

R. H. Hardin, Dec 28 2006

Status

approved