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 A104411 Number of prime factors, with multiplicity, of the tetranacci numbers A000078. 5
 0, 0, 1, 2, 3, 2, 1, 4, 5, 5, 1, 1, 3, 4, 6, 2, 2, 8, 5, 9, 2, 2, 4, 5, 6, 4, 2, 7, 5, 8, 2, 4, 3, 6, 12, 1, 3, 9, 7, 8, 2, 3, 4, 7, 4, 6, 4, 7, 3, 8, 6, 6, 6, 6, 7, 1, 3, 11, 5, 8, 5, 5, 5, 4, 7, 2, 3, 9, 5, 9, 4, 6, 6, 8, 12, 7, 4, 25, 8, 10, 4, 4, 4, 7, 6, 4, 11, 5, 6, 7, 3, 4, 3, 8, 8, 5, 6, 13, 8, 7, 5, 5, 5 (list; graph; refs; listen; history; text; internal format)
 OFFSET 3,4 LINKS Marcellus E. Waddill, The Tetranacci Sequence and Generalizations, The Fibonacci Quarterly, 30.1 (1992) 9. Marcellus E. Waddill, Some Properties of the Tetranacci Sequence Modulo m, The Fibonacci Quarterly, 30.3 (1992) 232. Eric Weisstein's World of Mathematics, Tetranacci Number. FORMULA a(n) = A001222(A000078(n)). a(n) = bigomega(A000078(n)). CROSSREFS Cf. A000078, A001222. Sequence in context: A336126 A336153 A299765 * A216084 A055101 A319108 Adjacent sequences:  A104408 A104409 A104410 * A104412 A104413 A104414 KEYWORD nonn AUTHOR Jonathan Vos Post, Mar 05 2005 EXTENSIONS More terms from R. J. Mathar, Dec 14 2009 Offset changed to 3 by Joerg Arndt, Dec 19 2020 STATUS approved

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Last modified May 11 00:43 EDT 2021. Contains 343784 sequences. (Running on oeis4.)