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A347525 Number of minimum dominating sets in the n-Andrásfai graph. 1
2, 5, 24, 22, 28, 34, 40, 46, 52, 58, 64, 70, 76, 82, 88, 94, 100, 106, 112, 118, 124, 130, 136, 142, 148, 154, 160, 166, 172, 178, 184, 190, 196, 202, 208, 214, 220, 226, 232, 238, 244, 250, 256, 262, 268, 274, 280, 286, 292, 298, 304, 310, 316, 322, 328, 334 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Eric Weisstein's World of Mathematics, Andrásfai Graph
Eric Weisstein's World of Mathematics, Minimum Dominating Set
FORMULA
a(n) = A016957(n-1) = 2*(3*n-1) for n > 3.
G.f.: x*(2 + x + 16*x^2 - 21*x^3 + 8*x^4)/(-1 + x)^2.
MATHEMATICA
LinearRecurrence[{2, -1}, {2, 5, 24, 22, 28}, 100] (* Paolo Xausa, Sep 01 2023 *)
CROSSREFS
Cf. A016957.
Sequence in context: A181074 A078125 A034692 * A002507 A137094 A209866
KEYWORD
nonn,easy
AUTHOR
Eric W. Weisstein, Sep 05 2021
STATUS
approved

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Last modified August 18 13:06 EDT 2024. Contains 375269 sequences. (Running on oeis4.)