Search: id:A035508 Results 1-1 of 1 results found. %I A035508 %S A035508 0,2,7,20,54,143,376,986,2583,6764,17710,46367,121392,317810, %T A035508 832039,2178308,5702886,14930351,39088168,102334154,267914295, %U A035508 701408732,1836311902,4807526975,12586269024,32951280098 %N A035508 Fibonacci(2n+4)-1. %D A035508 C. Kimberling, "Interspersions and dispersions," Proceedings of the American Mathematical Society 117 (1993) 313-321. %H A035508 C. Kimberling, Interspersions %H A035508 N. J. A. Sloane, Classic Sequences %F A035508 G.f.: x^2(2-x)/((1-x)(1-3x+x^2)). a(n)=4*a(n-1)-4*a(n-2)+a(n-3). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Dec 15 2008] %p A035508 (Mupad) numlib::fibonacci(2*n)-1 $ n = 1..38; - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 08 2008 %p A035508 g:=z/(1-3*z+z^2): gser:=series(g, z=0, 43): seq(abs(coeff(gser, z, n)-1), n=1..26);# [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 22 2009] %Y A035508 a(n)=A001906(n)-1. %Y A035508 With different offset: 2nd row of Inverse Stolarsky array A035507. %Y A035508 Cf. A152891. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Dec 15 2008] %Y A035508 Sequence in context: A050513 A128183 A027418 this_sequence A018033 A000149 A080041 %Y A035508 Adjacent sequences: A035505 A035506 A035507 this_sequence A035509 A035510 A035511 %K A035508 nonn %O A035508 1,2 %A A035508 N. J. A. Sloane (njas(AT)research.att.com). Search completed in 0.002 seconds