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A125489 Number of base 32 circular n-digit numbers with adjacent digits differing by 9 or less. 0
1, 32, 518, 6962, 108578, 1728482, 28149368, 464599244, 7743848026, 129978213530, 2192713621708, 37126026014824, 630255487661516, 10719498624749596, 182565758245973662, 3112315935214304042 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+F(9) for base>=9.int(n/2)+1 and F(d) is the largest coefficient in (1+x+...+x^(2d))^n

LINKS

Table of n, a(n) for n=0..15.

PROG

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>9)+($[(i+1)mod N]`-$[i]`>9))

CROSSREFS

Sequence in context: A109384 A248070 A146124 * A084486 A161640 A161987

Adjacent sequences:  A125486 A125487 A125488 * A125490 A125491 A125492

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified May 21 15:27 EDT 2019. Contains 323444 sequences. (Running on oeis4.)