Partial sums of A080182.

Terms

a(0) =1a(1) =3a(2) =8a(3) =15a(4) =27a(5) =42a(6) =64a(7) =88a(8) =123a(9) =199a(10) =474a(11) =828a(12) =1205a(13) =1823a(14) =4264a(15) =6746a(16) =12601a(17) =31057a(18) =51902a(19) =98698a(20) =146303a(21) =200269a(22) =254974a(23) =437166a(24) =619521a(25) =831377a(26) =1044530a(27) =1259242a(28) =1476227