Sum of the first moments of all partitions of n with weight starting at 1.

Terms

a(0) =0a(1) =1a(2) =5a(3) =13a(4) =32a(5) =61a(6) =123a(7) =208a(8) =367a(9) =590a(10) =957a(11) =1459a(12) =2266a(13) =3328a(14) =4938a(15) =7097a(16) =10205a(17) =14299a(18) =20100a(19) =27626a(20) =38023a(21) =51485a(22) =69600a(23) =92882a(24) =123863a(25) =163235a(26) =214798a(27) =280141a(28) =364530a(29) =470660