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A126500 Number of base 32 n-digit numbers with adjacent digits differing by three or less. 3
1, 32, 212, 1428, 9676, 65800, 448524, 3062596, 20939104, 143307908, 981612296, 6728277248, 46143758054, 316613006372, 2173302900418, 14923204166476, 102502175850752, 704231575697316, 4839430076086740, 33262613275263868 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+7^(n-1) for base>=3n-2; a(base,n)=a(base-1,n)+7^(n-1)-2 when base=3n-3

LINKS

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

PROG

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-2](($[i]`-$[i+1]`>3)+($[i+1]`-$[i]`>3))

CROSSREFS

Cf. Base 32 differing by two or less A126419, one or less A126386.

Sequence in context: A223023 A119286 A125342 * A160538 A200787 A250354

Adjacent sequences:  A126497 A126498 A126499 * A126501 A126502 A126503

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 27 2006

STATUS

approved

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Last modified February 16 05:10 EST 2019. Contains 320140 sequences. (Running on oeis4.)