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A125402 Number of base 14 circular n-digit numbers with adjacent digits differing by 6 or less. 0
1, 14, 140, 1232, 12264, 124544, 1282148, 13275164, 137827512, 1432774052, 14902936620, 155053649732, 1613412792924, 16789336384952, 174716066092918, 1818181935395762, 18921005733361000, 196902935774109020 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+F(6) for base>=6.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]`-$[(i+1)mod N]`>6)+($[(i+1)mod N]`-$[i]`>6))

CROSSREFS

Sequence in context: A016296 A021044 A121034 * A016290 A003457 A263822

Adjacent sequences:  A125399 A125400 A125401 * A125403 A125404 A125405

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified February 17 02:33 EST 2019. Contains 320200 sequences. (Running on oeis4.)