Row sums of A128623.

Terms

a(0) =1a(1) =4a(2) =12a(3) =24a(4) =45a(5) =72a(6) =112a(7) =160a(8) =225a(9) =300a(10) =396a(11) =504a(12) =637a(13) =784a(14) =960a(15) =1152a(16) =1377a(17) =1620a(18) =1900a(19) =2200a(20) =2541a(21) =2904a(22) =3312a(23) =3744a(24) =4225a(25) =4732a(26) =5292a(27) =5880a(28) =6525a(29) =7200