Row sums of triangle in A077526.

Terms

a(0) =1a(1) =24a(2) =339a(3) =866a(4) =1605a(5) =2556a(6) =3719a(7) =5094a(8) =6681a(9) =83910a(10) =92121a(11) =126052a(12) =266303a(13) =427674a(14) =610165a(15) =813776a(16) =1038507a(17) =1284358a(18) =1551329a(19) =1837540a(20) =2146652a(21) =2246984a(22) =4887236a(23) =7498608a(24) =10311000a(25) =13324412a(26) =16538844a(27) =19954296a(28) =23570768a(29) =27385390