Sum of terms in n-th row of A077164.

Terms

a(0) =2a(1) =8a(2) =25a(3) =56a(4) =103a(5) =198a(6) =323a(7) =464a(8) =655a(9) =924a(10) =1204a(11) =1620a(12) =2063a(13) =2548a(14) =3193a(15) =3872a(16) =4525a(17) =5454a(18) =6448a(19) =7500a(20) =8764a(21) =10116a(22) =11386a(23) =13032a(24) =14828a(25) =16562a(26) =18529a(27) =20712a(28) =22812a(29) =25764