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A295932 Number of (not necessarily maximal) cliques in the n-Sierpinski carpet graph. 0
17, 153, 1289, 10521, 84809, 680409, 5449097, 43610265, 348934601, 2791634265, 22333546505, 178669789209, 1429362565193, 11434913276121, 91479344472713, 731834870572953, 5854679308957385, 46837435504780377, 374699487137606921, 2997595906398947097, 23980767279085851977 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Eric Weisstein's World of Mathematics, Clique
Eric Weisstein's World of Mathematics, Sierpinski Carpet Graph
FORMULA
a(n) = (13*8^n - 8*3^n + 5)/5.
a(n) = 12*a(n-1) - 35*a(n-2) + 24*a(n-3).
G.f.: x*(-17 + 51*x - 48*x^2)/(-1 + 12*x - 35*x^2 + 24*x^3).
MATHEMATICA
Table[(13 8^n - 8 3^n + 5)/5, {n, 10}]
LinearRecurrence[{12, -35, 24}, {17, 153, 1289}, 20]
CoefficientList[Series[(-17 + 51 x - 48 x^2)/(-1 + 12 x - 35 x^2 + 24 x^3), {x, 0, 20}], x]
CROSSREFS
Sequence in context: A010969 A022582 A164543 * A298458 A160699 A034272
KEYWORD
nonn,easy
AUTHOR
Eric W. Weisstein, Nov 29 2017
STATUS
approved

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Last modified June 19 00:22 EDT 2024. Contains 373492 sequences. (Running on oeis4.)