A254446 Decimal expansion of Sum_{n>=1} 1/sinh(n).

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

Offset: 1

Author

Vaclav Kotesovec, Jan 30 2015

Keywords

• nonn
• cons

Examples

			1.284423027303676524572857579841338858444029376554223611185650493880957...
		

Crossrefs

Cf. A185393, A240964, A254445, A335414.

Programs

Maple

evalf(sum(1/sinh(n), n = 1..infinity), 120);

Mathematica

RealDigits[N[Re[Sum[1/Sinh[n],{n,1,Infinity}]],110],10,105][[1]]

PARI

suminf(n=1, 1/sinh(n)) \\ Michel Marcus, Jan 30 2015