A134880 Decimal expansion of Sum_{k>=1} 1/(2^k)^(2^k).

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

Offset: 0

Author

Artur Jasinski, Nov 14 2007

Keywords

• nonn
• cons

Examples

			0.25390630960464477544483510862427522170037264004418131333707266458541197733559...
		

Crossrefs

Cf. A073009, A100085, A134877, A134878, A134879.

Programs

Mathematica

RealDigits[N[Sum[1/(2^n)^(2^n), {n, 1, 30}], 200]][[1]]

PARI

suminf(k=1, 1/(2^k)^(2^k)) \\ Michel Marcus, Jan 15 2021