1,2

Close to but different from Pi^4/60 = 1.6234848505667072... - R. J. Mathar, Jul 19 2012

Table of n, a(n) for n=1..105.

1.62348740164013300302621112766...

Cf. A001113, A000796, A059742.

Sequence in context: A222223 A284821 A145680 * A019662 A330531 A134105

Adjacent sequences: A094772 A094773 A094774 * A094776 A094777 A094778

cons,nonn

Mohammad K. Azarian, Jun 09 2004

approved