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A237515 Decimal expansion of the sum of reciprocals of the strict partition function (the function giving the number of partitions of an integer into distinct parts). 3
4, 6, 7, 3, 4, 4, 4, 5, 7, 9, 3, 1, 6, 3, 4, 5, 1, 7, 5, 0, 3, 3, 4, 1, 7, 4, 3, 4, 6, 1, 1, 3, 0, 5, 3, 9, 8, 5, 8, 9, 7, 0, 3, 9, 9, 3, 6, 9, 8, 9, 3, 1, 2, 3, 8, 6, 7, 4, 0, 5, 2, 2, 0, 2, 1, 5, 6, 9, 9, 9, 5, 7, 1, 2, 2, 0, 1, 9, 7, 0, 7, 7, 3, 4, 6, 2, 5, 0, 3, 9, 7, 7, 3, 1, 7, 1, 7, 4, 8, 5 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vaclav Kotesovec, Table of n, a(n) for n = 1..750 (terms 1..100 from Jean-Francois Alcover)

FORMULA

Sum_{n>=1} 1/A000009(n). - Vaclav Kotesovec, Dec 08 2015

EXAMPLE

4.6734445793163451750334174346113053985897...

MATHEMATICA

digits = 100; NSum[1/PartitionsQ[n], {n, 1, Infinity}, NSumTerms -> 15000, WorkingPrecision -> digits+1] // RealDigits[#, 10, digits]& // First

CROSSREFS

Cf. A000009, A078506, A303662.

Sequence in context: A197010 A021218 A298974 * A200939 A244816 A197585

Adjacent sequences:  A237512 A237513 A237514 * A237516 A237517 A237518

KEYWORD

nonn,cons

AUTHOR

Jean-Fran├žois Alcover, Feb 24 2014

STATUS

approved

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Last modified April 19 04:19 EDT 2019. Contains 322237 sequences. (Running on oeis4.)