A338168 Decimal expansion of Sum_{n>=1} 1/(2n-1)^(2n).

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

Offset: 1

Author

Mario Cortés, Oct 14 2020

Keywords

• nonn
• cons

Comments

This is the sum of the inverse of odd numbers raised to the even numbers.

Examples

			1.0124098527659873204681857270193548770717264307070789173009...
		

Crossrefs

Cf. A073009, A222621, A338167.

Programs

PARI

suminf(n=1, (2*n-1)^(-2*n))

Formula

Equals Sum_{n>=1} 1/A222621(n).