Numerator of 1/n + 2/(n-1) + 3/(n-2) + ... + (n-1)/2 + n.

Terms

a(0) =1a(1) =5a(2) =13a(3) =77a(4) =87a(5) =223a(6) =481a(7) =4609a(8) =4861a(9) =55991a(10) =58301a(11) =785633a(12) =811373a(13) =835397a(14) =1715839a(15) =29889983a(16) =30570663a(17) =197698279a(18) =201578155a(19) =41054655a(20) =13920029a(21) =325333835a(22) =990874363a(23) =25128807667a(24) =25472027467a(25) =232222818803a(26) =235091155703