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A125385 Number of base 22 circular n-digit numbers with adjacent digits differing by 5 or less. 0
1, 22, 212, 1672, 15352, 143572, 1374890, 13348434, 130975440, 1295298664, 12888294202, 128849609746, 1292978243302, 13012965716110, 131270937263076, 1326645978732772, 13426630671484000, 136041420998930404 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+F(5) for base>=5.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..17.

PROG

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>5)+($[(i+1)mod N]`-$[i]`>5))

CROSSREFS

Sequence in context: A010828 A022714 A302924 * A126543 A232019 A224330

Adjacent sequences:  A125382 A125383 A125384 * A125386 A125387 A125388

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified September 25 21:07 EDT 2020. Contains 337344 sequences. (Running on oeis4.)