A125366 Number of base 29 circular n-digit numbers with adjacent digits differing by 4 or less.

1, 29, 241, 1589, 12281, 96279, 773245, 6293687, 51780089, 429498473, 3585931251, 30099267623, 253765101341, 2147470776077, 18230728488283, 155192678512659, 1324259934723241, 11323518226156213, 97003621972668547

Offset

0,2

Comments

[Empirical] a(base,n)=a(base-1,n)+A025014(n+1) for base>=4.int(n/2)+1

Links

Table of n, a(n) for n=0..18.

Prog

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>4)+($[(i+1)mod N]`-$[i]`>4))

Crossrefs

Sequence in context: A225009 A177419 A142559 * A126524 A334690 A027939

Adjacent sequences: A125363 A125364 A125365 * A125367 A125368 A125369

Keyword

nonn,base

Author

R. H. Hardin, Dec 28 2006

Status

approved