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 A333936 a(n) is the product of the distinct prime factors of A054412(n). 1
 1, 2, 3, 6, 6, 6, 10, 6, 5, 10, 14, 10, 30, 15, 30, 30, 30, 15, 14, 30, 30, 30, 42, 30, 22, 30, 30, 42, 30, 42, 21, 7, 42, 42, 26, 30, 30, 30, 30, 42, 42, 14, 30, 66, 30, 30, 66, 42, 10, 70, 21, 66, 78, 34, 42, 22, 70, 42, 15, 78, 42, 70, 66, 42, 42, 78, 66 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Equivalently, a(n) is the product of the exponents of the prime factorization of A054412(n). Every squarefree number s appears A001221(s)^A001221(s) times. LINKS Rémy Sigrist, Table of n, a(n) for n = 1..10000 Rémy Sigrist, PARI program for A333936 FORMULA a(n) = A005361(A054412(n)) = A007947(A054412(n)). EXAMPLE For n = 36: - A054412(36) = 1474560 = 2^15 * 3^2 * 5, - hence a(36) = 2 * 3 * 5 = 30. PROG (PARI) See Links section. CROSSREFS Cf. A001221, A005361, A007947, A054412. Sequence in context: A274213 A078706 A077082 * A193896 A099162 A187327 Adjacent sequences:  A333933 A333934 A333935 * A333937 A333938 A333939 KEYWORD nonn AUTHOR Rémy Sigrist, Apr 11 2020 STATUS approved

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Last modified November 30 19:02 EST 2021. Contains 349424 sequences. (Running on oeis4.)