Denominators of partial alternating sums of Catalan numbers scaled by powers of 1/(5*8^2) = 1/320.

A121011

Denominators of partial alternating sums of Catalan numbers scaled by powers of 1/(5*8^2) = 1/320.

Terms

    a(0) =1a(1) =320a(2) =51200a(3) =6553600a(4) =5242880000

External references