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 A174442 a(n) = a(n-1)+a(n-2) if n is odd, otherwise a(n) = a(n-1)*a(n-2) with a(1)=3 and a(2)=5. 1
 3, 5, 8, 40, 48, 1920, 1968, 3778560, 3780528, 14284951879680, 14284955660208, 204059904209433724979773440, 204059904209448009935433648, 41640444505966182658016083427778017651139155192709120, 41640444505966182658016083631837921860587165128142768 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..23 MATHEMATICA nxt[{n_, a_, b_}]:={n+1, b, If[EvenQ[n], a+b, a*b]}; NestList[nxt, {2, 3, 5}, 15][[All, 2]] (* Harvey P. Dale, Nov 15 2021 *) CROSSREFS Cf. A174418 Sequence in context: A027520 A195548 A174529 * A109342 A121371 A067094 Adjacent sequences: A174439 A174440 A174441 * A174443 A174444 A174445 KEYWORD nonn AUTHOR Giovanni Teofilatto, Mar 20 2010 EXTENSIONS Corrected by Harvey P. Dale, Nov 15 2021 STATUS approved

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Last modified September 18 21:47 EDT 2024. Contains 376002 sequences. (Running on oeis4.)