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 A256103 a(n) = GCD(A001008(m(n)),m(n)), with m(n) = A256102(n), n >= 1. 4
 5, 7, 11, 11, 13, 17, 19, 23, 29, 31, 43, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 11, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS See A256102. The entry a(n) gives the quotient of the numerator of the harmonic sum of the first A256102(n) positive integers and the denominator of the harmonic mean of the same numbers. For each positive integer values m not from A256102 this quotient is 1. LINKS FORMULA a(n) = GCD(A001008(m(n)),m(n)), with m(n) = A256102(n), n >= 1. a(n) = A001008(m(n))/A175441(m(n)), with m(n) = A256103(n), n >= 1. EXAMPLE n=1: GCD(A001008(20),20) = GCD(55835135,20) = 5. A001008(20)/A175441(20) = 55835135/11167027 = 5. Because 19 is not from A256102 one has A001008(19) = A175441(19) = 275295799. CROSSREFS Cf. A256102, A002805, A001008, A175441. Sequence in context: A107257 A275515 A098806 * A275645 A122278 A124109 Adjacent sequences:  A256100 A256101 A256102 * A256104 A256105 A256106 KEYWORD nonn,easy AUTHOR Wolfdieter Lang, Apr 16 2015 STATUS approved

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Last modified October 16 19:22 EDT 2018. Contains 316271 sequences. (Running on oeis4.)