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A125416 Number of base 28 circular n-digit numbers with adjacent digits differing by 6 or less. 0
1, 28, 322, 3010, 32830, 364658, 4147612, 47830608, 557530518, 6551280562, 77467665302, 920625665702, 10984613101924, 131489273810104, 1578096648395736, 18980188700616500, 228674496511259030 (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
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: A196513 A042520 A022688 * A241038 A055753 A159520
KEYWORD
nonn,base
AUTHOR
R. H. Hardin, Dec 28 2006
STATUS
approved

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Last modified February 21 20:28 EST 2024. Contains 370237 sequences. (Running on oeis4.)