Numerator of the rational part of the sum of reciprocals of even powers of even numbers, i.e., Sum_{k>=1} 1/(2*k)^(2*n).

A276594

Numerator of the rational part of the sum of reciprocals of even powers of even numbers, i.e., Sum_{k>=1} 1/(2*k)^(2*n).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =691a(6) =1a(7) =3617a(8) =43867a(9) =174611a(10) =77683a(11) =236364091a(12) =657931a(13) =3392780147a(16) =151628697551

External references