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A125375 Number of base 12 circular n-digit numbers with adjacent digits differing by 5 or less. 0
1, 12, 102, 762, 6442, 55562, 486102, 4278734, 37774538, 333954114, 2954331502, 26143583918, 231384164326, 2048007248286, 18127716503740, 160457920059992, 1420307031097690, 12572010392961098, 111282760217915184 (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..18.

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: A022736 A261483 A082151 * A217057 A240462 A126533

Adjacent sequences:  A125372 A125373 A125374 * A125376 A125377 A125378

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified December 1 22:24 EST 2020. Contains 338858 sequences. (Running on oeis4.)