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 A292251 The 3-adic valuation of A048673(n). 6
 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 3, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0, 1, 0, 0, 0, 2, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 4, 0, 1, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,13 LINKS Antti Karttunen, Table of n, a(n) for n = 1..16384 FORMULA a(n) = A007814(1+A292250(n)). a(n) = A007949(A048673(n)). a(n) = A007949(3*A048673(n)) - 1. a(n) = A292252(2n)-1. MATHEMATICA IntegerExponent[#, 3] & /@ Table[(Times @@ Power[If[# == 1, 1, NextPrime@ #] & /@ First@ #, Last@ #] + 1)/2 &@ Transpose@ FactorInteger@ n, {n, 120}] (* Michael De Vlieger, Sep 12 2017 *) CROSSREFS One less than the even bisection of A292252. Cf. A007814, A007949, A048673, A292250. Cf. also A292241, A292261. Sequence in context: A258764 A109083 A256812 * A231715 A137678 A218855 Adjacent sequences:  A292248 A292249 A292250 * A292252 A292253 A292254 KEYWORD nonn AUTHOR Antti Karttunen, Sep 12 2017 STATUS approved

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Last modified February 21 20:23 EST 2020. Contains 332111 sequences. (Running on oeis4.)