%I #10 Aug 12 2023 10:58:45
%S 1,17,79,293,1267,5527,24739,112143,513867,2373647,11035789,51580623,
%T 242148559,1141014203,5393615257,25565881003,121473190683,
%U 578379092367,2758998721111,13182804752499,63081972236317,302258226703131
%N Number of base 17 circular n-digit numbers with adjacent digits differing by 2 or less.
%C [Empirical] a(base,n)=a(base-1,n)+A005191(n+1) for base>=2.int(n/2)+1.
%C See A285280 for confirmation of linear recurrence and code to produce sequence. - _Ray Chandler_, Aug 12 2023.
%H Ray Chandler, <a href="/A124898/b124898.txt">Table of n, a(n) for n = 0..99</a>
%H <a href="/index/Rec#order_16">Index entries for linear recurrences with constant coefficients</a>, signature (17, -105, 245, 104, -1274, 912, 2310, -2361, -2039, 2218, 918, -920, -194, 156, 16, -8).
%o (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))
%Y Cf. Row 17 of A285280.
%K nonn,base
%O 0,2
%A _R. H. Hardin_, Dec 28 2006