A125348 Number of base 11 circular n-digit numbers with adjacent digits differing by 4 or less.

1, 11, 79, 491, 3479, 25161, 185353, 1377877, 10296415, 77159957, 579124519, 4350292705, 32693711237, 245763900549, 1847696428671, 13892325835221, 104456760543551, 785430024706513, 5905865012106589, 44408109269422365

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..19.

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: A026864 A243416 A101028 * A337929 A155619 A126506

Adjacent sequences: A125345 A125346 A125347 * A125349 A125350 A125351

Keyword

nonn,base

Author

R. H. Hardin, Dec 28 2006

Status

approved