A125339 Number of base 29 circular n-digit numbers with adjacent digits differing by 3 or less.

1, 29, 191, 989, 6007, 36899, 232283, 1481187, 9545655, 62011583, 405450761, 2664933377, 17592909979, 116573138347, 774886954865, 5165028310229, 34510517162935, 231073883699423, 1550128124848997, 10416325061012499

Offset

0,2

Comments

[Empirical] a(base,n)=a(base-1,n)+A025012(n+1) for base>=3.int(n/2)+1

Links

Table of n, a(n) for n=0..19.

Prog

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>3)+($[(i+1)mod N]`-$[i]`>3))

Crossrefs

Sequence in context: A165613 A302450 A355623 * A126497 A087767 A142226

Adjacent sequences: A125336 A125337 A125338 * A125340 A125341 A125342

Keyword

nonn,base

Author

R. H. Hardin, Dec 28 2006

Status

approved