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 A324469 Exponent of highest power of 3 that divides multinomial(4*n;n,n,n,n). 0
 0, 1, 2, 1, 2, 4, 2, 5, 6, 1, 2, 3, 2, 3, 6, 4, 6, 7, 2, 3, 4, 5, 6, 8, 6, 8, 9, 1, 2, 3, 2, 3, 5, 3, 6, 7, 2, 3, 4, 3, 4, 8, 6, 8, 9, 4, 5, 6, 6, 7, 9, 7, 9, 10, 2, 3, 4, 3, 4, 6, 4, 9, 10, 5, 6, 7, 6, 7, 10, 8, 10, 11, 6, 7, 8, 8, 9, 11, 9, 11, 12, 1, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS FORMULA a(n) = 2*A000989(n) + A000989(2*n). - Charlie Neder, Mar 09 2019 MAPLE [seq(padic[ordp](combinat[multinomial](4*n, n\$4), 3), n=0..128)]; CROSSREFS Analogs for binomial and trinomials: A000989, A053735. See also A324467. Cf. A007949 (3-adic valuation of n). Sequence in context: A263050 A060547 A079878 * A329688 A217920 A137406 Adjacent sequences:  A324466 A324467 A324468 * A324470 A324471 A324472 KEYWORD nonn AUTHOR N. J. A. Sloane, Mar 03 2019 STATUS approved

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Last modified December 8 09:32 EST 2019. Contains 329862 sequences. (Running on oeis4.)