Partial sums of A301678.

Terms

a(0) =1a(1) =6a(2) =16a(3) =30a(4) =50a(5) =76a(6) =107a(7) =143a(8) =184a(9) =230a(10) =282a(11) =340a(12) =400a(13) =465a(14) =539a(15) =618a(16) =698a(17) =784a(18) =880a(19) =978a(20) =1077a(21) =1185a(22) =1302a(23) =1420a(24) =1540a(25) =1670a(26) =1806a(27) =1943a(28) =2085a(29) =2236