A396450 Decimal expansion of Sum_{k>=0} 1/(k!)^5.

2, 0, 3, 1, 3, 7, 8, 7, 2, 6, 4, 4, 9, 9, 7, 9, 4, 4, 8, 3, 2, 1, 5, 5, 4, 3, 6, 1, 9, 7, 3, 4, 1, 6, 3, 9, 7, 8, 5, 7, 0, 5, 9, 1, 0, 8, 4, 4, 9, 0, 7, 1, 0, 8, 8, 0, 0, 7, 3, 9, 2, 8, 0, 6, 8, 8, 9, 8, 9, 1, 9, 7, 8, 0, 5, 6, 5, 4, 0, 3, 1, 0, 9, 7, 9, 0, 6, 6, 8, 1, 5, 4, 7, 5, 6, 0, 8, 3, 3, 6, 9, 6, 4, 0, 1, 7, 9, 4, 7, 6, 2

Offset

1,1

Links

Kelvin Voskuijl, Table of n, a(n) for n = 1..10000

Example

2.031378726449979...

Mathematica

RealDigits[HypergeometricPFQ[{}, {1, 1, 1, 1}, 1], 10, 120][[1]]

Prog

(PARI) suminf(k=0, 1/k!^5)

Crossrefs

Cf. A396224.

Cf. A001113, A070910, A271574, A396449, A396451, A396452.

Sequence in context: A348712 A292801 A353396 * A385222 A355533 A355528

Adjacent sequences: A396447 A396448 A396449 * A396451 A396452 A396453

Keyword

nonn,cons

Author

Kelvin Voskuijl, May 26 2026

Status

approved