Partial sums of A301680.

Terms

a(0) =1a(1) =5a(2) =14a(3) =29a(4) =49a(5) =75a(6) =107a(7) =143a(8) =183a(9) =229a(10) =281a(11) =337a(12) =399a(13) =467a(14) =539a(15) =615a(16) =697a(17) =785a(18) =877a(19) =975a(20) =1079a(21) =1187a(22) =1299a(23) =1417a(24) =1541a(25) =1669a(26) =1803a(27) =1943a(28) =2087a(29) =2235