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 A187487 Numerator of n minus n-th harmonic number. 1
 0, 1, 7, 23, 163, 71, 617, 1479, 15551, 17819, 221209, 246619, 3538687, 3873307, 4209643, 9094961, 166145857, 59239139, 1199057081, 254554945, 89778475, 94716499, 2292289173, 7218943253, 189040347533 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS Robert Israel, Table of n, a(n) for n = 1..2286 FORMULA a(n) = n - Sum_{i = 1..n} 1/i. a(n) = Sum_{i = 2..n} (i - 1)/i. MAPLE f:=n -> numer(n - harmonic(n)):map(f, [\$1..100]); # Robert Israel, Apr 26 2021 MATHEMATICA Numerator[Table[n - HarmonicNumber[n], {n, 25}]] PROG (PARI) a(n) = numerator(n - sum(i=1, n, 1/i)); \\ Michel Marcus, Apr 26 2021 CROSSREFS Denominators are in A002805. Cf. A001008 (numerators of the harmonic numbers). Adding this sequence to that sequence gives A102928. Sequence in context: A158954 A056205 A099051 * A299643 A034192 A050918 Adjacent sequences:  A187484 A187485 A187486 * A187488 A187489 A187490 KEYWORD nonn,frac,easy,changed AUTHOR Alonso del Arte, Mar 10 2011 STATUS approved

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Last modified May 7 15:02 EDT 2021. Contains 343650 sequences. (Running on oeis4.)