Partial sums of A299272.

Terms

a(0) =1a(1) =7a(2) =25a(3) =62a(4) =125a(5) =224a(6) =366a(7) =555a(8) =804a(9) =1121a(10) =1505a(11) =1973a(12) =2535a(13) =3183a(14) =3939a(15) =4816a(16) =5797a(17) =6910a(18) =8172a(19) =9555a(20) =11094a(21) =12811a(22) =14665a(23) =16699a(24) =18941a(25) =21335a(26) =23933a(27) =26770a(28) =29773a(29) =33004