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A124857
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Number of base 11 circular n-digit numbers with adjacent digits differing by 2 or less.
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2
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1, 11, 49, 179, 757, 3241, 14233, 63333, 284877, 1291697, 5894119, 27031653, 124481521, 575160311, 2664800299, 12374329729, 57568895517, 268238883291, 1251429223153, 5844466935453, 27318547433927, 127784523940077
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OFFSET
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0,2
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COMMENTS
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[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.
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LINKS
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Index entries for linear recurrences with constant coefficients, signature (11, -36, 12, 105, -77, -102, 66, 35, -15, -3, 1).
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PROG
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(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))
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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