A019665 Decimal expansion of sqrt(Pi*e)/21.

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

Offset

0,2

Links

Ivan Panchenko, Table of n, a(n) for n = 0..1000

Formula

Equals A019645/21.

Example

0.13915630311058466021626776552893725311418607393555...

Mathematica

RealDigits[Sqrt[Pi*E]/21, 10, 120][[1]] (* Amiram Eldar, Apr 20 2026 *)

Prog

(PARI) sqrt(Pi*exp(1))/21 \\ Amiram Eldar, Apr 20 2026

Crossrefs

Cf. A019645.

Sequence in context: A245081 A010631 A355926 * A119898 A371497 A113847

Adjacent sequences: A019662 A019663 A019664 * A019666 A019667 A019668

Keyword

nonn,cons

Author

N. J. A. Sloane

Status

approved