A019710 Decimal expansion of sqrt(Pi)/8.

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

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Links

• Ivan Panchenko, Table of n, a(n) for n = 0..1000
• Index entries for transcendental numbers.

Crossrefs

Cf. A002161.

Programs

Mathematica

RealDigits[Sqrt[Pi]/8,10,120][[1]] (* Harvey P. Dale, Jul 14 2011 *)

PARI

sqrt(Pi)/8 \\ Charles R Greathouse IV, Sep 30 2022

Formula

Equals 10 * Sum_{k>=1} (k+1/2)!/(k+4)!. - Amiram Eldar, Jun 19 2023