Denominator of b(n) = -Sum_{k=1..n} A037861(k)/((2*k)*(2*k+1)), where A037861(k) = (number of 0's) - (number of 1's) in the binary representation of k.

A110626

Denominator of b(n) = -Sum_{k=1..n} A037861(k)/((2*k)*(2*k+1)), where A037861(k) = (number of 0's) - (number of 1's) in the binary representation of k.

Terms

    a(0) =6a(1) =6a(2) =14a(3) =504a(4) =27720a(5) =360360a(6) =360360a(7) =765765a(8) =765765a(9) =765765a(10) =1601145a(11) =1601145a(12) =369495a(13) =3061530a(14) =94907430a(15) =16703707680a(16) =116925953760

External references