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A124898 Number of base 17 circular n-digit numbers with adjacent digits differing by 2 or less. 1
1, 17, 79, 293, 1267, 5527, 24739, 112143, 513867, 2373647, 11035789, 51580623, 242148559, 1141014203, 5393615257, 25565881003, 121473190683, 578379092367, 2758998721111, 13182804752499, 63081972236317, 302258226703131 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+A005191(n+1) for base>=2.int(n/2)+1

LINKS

Table of n, a(n) for n=0..21.

PROG

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>2)+($[(i+1)mod N]`-$[i]`>2))

CROSSREFS

Sequence in context: A063494 A146594 A202138 * A036429 A126404 A142021

Adjacent sequences:  A124895 A124896 A124897 * A124899 A124900 A124901

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified October 19 22:28 EDT 2018. Contains 316378 sequences. (Running on oeis4.)