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A125340 Number of base 30 circular n-digit numbers with adjacent digits differing by 3 or less. 0
1, 30, 198, 1026, 6238, 38350, 241614, 1541878, 9944222, 64647846, 422988918, 2782157694, 18379498222, 121868659046, 810638482054, 5406986392966, 36151528042142, 242224492645286, 1626022574433846, 10933656445976458 (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: A120339 A319334 A064247 * A126498 A029545 A200548

Adjacent sequences: A125337 A125338 A125339 * A125341 A125342 A125343

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified February 7 08:55 EST 2023. Contains 360115 sequences. (Running on oeis4.)