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A124892
Number of base 14 circular n-digit numbers with adjacent digits differing by 2 or less.
2
1, 14, 64, 236, 1012, 4384, 19486, 87738, 399372, 1832672, 8464954, 39306138, 183315034, 858086906, 4029197992, 18969932356, 89518725372, 423283210304, 2004963114682, 9511428021442, 45182292435262, 214884038667702
OFFSET
0,2
COMMENTS
[Empirical] a(base,n)=a(base-1,n)+A005191(n+1) for base>=2.int(n/2)+1.
See A285280 for confirmation of linear recurrence and code to produce sequence. - Ray Chandler, Aug 12 2023.
LINKS
Index entries for linear recurrences with constant coefficients, signature (14, -66, 88, 175, -458, -109, 680, -29, -410, 40, 96, -9, -6).
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
Cf. Row 14 of A285280.
Sequence in context: A275127 A074354 A212743 * A126401 A275268 A304873
KEYWORD
nonn,base
AUTHOR
R. H. Hardin, Dec 28 2006
STATUS
approved