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 A247551 Decimal expansion of Product_{k>=2} 1/(1-1/k!). 16
 2, 5, 2, 9, 4, 7, 7, 4, 7, 2, 0, 7, 9, 1, 5, 2, 6, 4, 8, 1, 8, 0, 1, 1, 6, 1, 5, 4, 2, 5, 3, 9, 5, 4, 2, 4, 1, 1, 7, 8, 7, 0, 2, 3, 9, 4, 8, 4, 5, 9, 9, 7, 3, 3, 7, 5, 8, 4, 9, 3, 4, 9, 8, 2, 5, 0, 0, 2, 1, 1, 8, 7, 8, 0, 0, 8, 6, 6, 9, 9, 1, 2, 1, 9, 9, 8, 8, 3, 6, 4, 6, 2, 5, 2, 6, 1, 4, 9, 5, 5, 1, 6, 4, 3, 2 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS A. Knopfmacher, A. M. Odlyzko, B. Pittel, L. B. Richmond, D. Stark, G. Szekeres, N. C. Wormald, The Asymptotic Number of Set Partitions with Unequal Block Sizes, The Electronic Journal of Combinatorics, Volume 6 (1999), Research Paper #R2. FORMULA Product_{k>=2} 1/(1-1/k!). Equals lim n -> infinity A005651(n) / n!. EXAMPLE 2.5294774720791526481801161542539542411787023948459973375849349825... MAPLE evalf(1/product(1-1/k!, k=2..infinity), 100); # Vaclav Kotesovec, Sep 19 2014 PROG (PARI) default(realprecision, 150); 1/prodinf(k=2, 1 - 1/k!) \\ Vaclav Kotesovec, Sep 21 2014 CROSSREFS Cf. A005651, A035341, A072605, A140585, A183239, A209668, A261600, A292713, A320566, A327827. Sequence in context: A131201 A070633 A266256 * A273580 A272679 A119764 Adjacent sequences:  A247548 A247549 A247550 * A247552 A247553 A247554 KEYWORD nonn,cons,easy AUTHOR Vaclav Kotesovec, Sep 19 2014 STATUS approved

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Last modified June 4 00:49 EDT 2020. Contains 334808 sequences. (Running on oeis4.)