A336765 Decimal expansion of Sum_{n>=1} 1/(n!*n^n).

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

Offset

1,3

Links

Table of n, a(n) for n=1..105.

Formula

Equals Sum_{n>=1} 1/A061711(n).

Example

1.13133829660062637150885278692834951306810695090...

Maple

evalf(sum(1/(n!*n^n), n=1..infinity), 106);  # Alois P. Heinz, Nov 20 2020

Mathematica

RealDigits[N[Sum[1/(n!*n^n), {n, 1, Infinity}], 800]]

Prog

(PARI) suminf(n=1, 1/(n!*n^n)) \\ Michel Marcus, Aug 20 2020

Crossrefs

Cf. A061711, A073009, A094082.

Sequence in context: A327190 A160123 A238784 * A147610 A238313 A163270

Adjacent sequences: A336762 A336763 A336764 * A336766 A336767 A336768

Keyword

nonn,cons

Author

Mario Cortés, Aug 03 2020

Extensions

Missing first digit inserted by Alois P. Heinz, Nov 20 2020

Status

approved