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 A081669 Expansion of exp(2x)+exp(x)BesselI_0(2x). 2
 1, 3, 7, 15, 35, 83, 205, 521, 1363, 3651, 9977, 27701, 77885, 221133, 632611, 1820375, 5262163, 15266003, 44414953, 129521141, 378427945, 1107447881, 3245329831, 9521616731, 27965113597, 82210390733, 241880335015 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Binomial transform of A081668. Inverse binomial transform of A081670. LINKS FORMULA E.g.f. exp(2x) - exp(0) + exp(x)BesselI_0(2x). Conjecture: n*a(n) +(-6*n+5)*a(n-1) +(9*n-17)*a(n-2) +4*(n-1)*a(n-3) +12*(-n+3)*a(n-4)=0. - R. J. Mathar, Nov 24 2012 CROSSREFS Cf. A000984. Sequence in context: A174284 A182892 A124696 * A086821 A007576 A167539 Adjacent sequences:  A081666 A081667 A081668 * A081670 A081671 A081672 KEYWORD easy,nonn AUTHOR Paul Barry, Mar 28 2003 STATUS approved

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