A125324 Number of base 14 circular n-digit numbers with adjacent digits differing by 3 or less.

1, 14, 86, 434, 2542, 15134, 92318, 570822, 3567150, 22467638, 142378416, 906569832, 5794153978, 37142273910, 238653335454, 1536292377434, 9904175388110, 63924370849750, 412963549917890, 2669744556760982

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: A206621 A372148 A213121 * A126482 A206614 A345107

Adjacent sequences: A125321 A125322 A125323 * A125325 A125326 A125327

Keyword

nonn,base

Author

R. H. Hardin, Dec 28 2006

Status

approved