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 A112761 Exponent of 3 (value of j) in n-th number of the form 2^i*3^j*5^k. 6
 0, 0, 1, 0, 0, 1, 0, 2, 0, 1, 1, 0, 2, 0, 1, 0, 3, 1, 0, 2, 0, 2, 1, 0, 3, 1, 0, 2, 1, 0, 4, 2, 1, 0, 3, 1, 0, 0, 3, 2, 1, 0, 4, 2, 1, 0, 3, 2, 1, 5, 0, 0, 3, 2, 1, 0, 4, 2, 1, 1, 0, 4, 3, 2, 1, 5, 0, 0, 3, 2, 1, 0, 0, 4, 3, 2, 6, 1, 1, 0, 4, 3, 2, 1, 5, 0, 0, 3, 2, 2, 1, 5, 0, 0, 4, 3, 2, 6, 1, 1, 0, 4, 3, 2, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,8 LINKS Amiram Eldar, Table of n, a(n) for n = 1..10000 FORMULA a(n) = A007949(A051037(n)); a(n) = A112759(n) - A112760(n) - A112762(n). MATHEMATICA IntegerExponent[#, 3] & /@ Select[Range[3000], Last @ Map[First, FactorInteger[#]] <= 5 &] (* Amiram Eldar, Feb 07 2020 *) CROSSREFS Cf. A007949, A022336, A022329, A051037, A112759, A112760, A112762. Sequence in context: A271368 A116799 A057556 * A284320 A281271 A284319 Adjacent sequences:  A112758 A112759 A112760 * A112762 A112763 A112764 KEYWORD nonn AUTHOR Reinhard Zumkeller, Sep 18 2005 STATUS approved

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Last modified May 8 02:26 EDT 2021. Contains 343652 sequences. (Running on oeis4.)