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 A167751 Diagonal sums of A167749. 2
 1, 0, 1, 1, 2, 4, 7, 14, 27, 52, 102, 198, 387, 755, 1474, 2879, 5622, 10982, 21450, 41900, 81847, 159880, 312315, 610086, 1191768, 2328054, 4547732, 8883767, 17354001, 33900200, 66222412, 129362318, 252703135, 493643580, 964309346 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 COMMENTS Hankel transform is A167753. LINKS FORMULA G.f.: 1/(1-x^2/(1-x/(1-x^2/(1-x^3/(1-x^4/(1-...)))))) (continued fraction); G.f.: 1/(1-x^2*f(x)), f(x) the g.f. of A005169. EXAMPLE G.f. = 1 + x^2 + x^3 + 2*x^4 + 4*x^5 + 7*x^6 + 14*x^7 + 27*x^8 + 52*x^9 + ... CROSSREFS Sequence in context: A001631 A108758 A018085 * A190822 A107949 A155099 Adjacent sequences:  A167748 A167749 A167750 * A167752 A167753 A167754 KEYWORD easy,nonn AUTHOR Paul Barry, Nov 10 2009 STATUS approved

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Last modified February 19 19:06 EST 2020. Contains 332047 sequences. (Running on oeis4.)