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A217702
Decimal expansion of Sum_{n>=0} 1/(1+n!).
1
1, 5, 2, 6, 0, 6, 8, 1, 3, 4, 4, 7, 3, 3, 3, 0, 8, 2, 4, 7, 7, 8, 0, 4, 7, 2, 2, 5, 1, 6, 2, 4, 3, 8, 4, 0, 5, 4, 4, 9, 7, 5, 4, 2, 4, 0, 4, 6, 6, 4, 6, 5, 6, 5, 0, 7, 5, 8, 3, 6, 5, 6, 5, 1, 6, 7, 9, 5, 7, 4, 7, 1, 1, 4, 7, 2, 0, 2, 5, 2, 3, 8, 8, 0, 1, 8, 1, 6, 0, 9, 7, 3, 1, 1, 7, 7, 3, 6, 3, 0
OFFSET
1,2
COMMENTS
Is there any known closed form for this sum?
EXAMPLE
1.526068134473330824778047225162438405449754240466465650758365651679...
MATHEMATICA
digits = 100; NSum[1/(1 + n!), {n, 0, Infinity}, NSumTerms -> digits, WorkingPrecision -> digits+5] // RealDigits[#, 10, digits]& // First
CROSSREFS
Cf. A038507.
Sequence in context: A253384 A175557 A332455 * A018247 A152025 A021099
KEYWORD
nonn,cons
AUTHOR
STATUS
approved