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A125341 Number of base 31 circular n-digit numbers with adjacent digits differing by 3 or less. 0
1, 31, 205, 1063, 6469, 39801, 250945, 1602569, 10342789, 67284109, 440527075, 2899382011, 19166086465, 127164179745, 846390009243, 5648944475703, 37792538921349, 253375101591149, 1701917024018695, 11450987830940417 (list; graph; refs; listen; history; text; internal format)
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: A142654 A137657 A228220 * A126499 A297758 A184058

Adjacent sequences: A125338 A125339 A125340 * A125342 A125343 A125344

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified January 31 18:02 EST 2023. Contains 359980 sequences. (Running on oeis4.)