A384510 Decimal expansion of Product_{k>=0} (1 + 1/k!^2).

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

Offset

1,1

Links

Kelvin Voskuijl, Table of n, a(n) for n = 1..20000

Example

5.1481781945902396880952694880498895078630362906948...

Prog

(PARI) prodinf(k=0, 1 + 1/k!^2)

Crossrefs

Cf. A001044, A238695.

Sequence in context: A342014 A355953 A167864 * A232809 A011301 A388334

Adjacent sequences: A384507 A384508 A384509 * A384511 A384512 A384513

Keyword

nonn,cons

Author

Kelvin Voskuijl, Aug 14 2025

Status

approved