Antidiagonal sums of A343052.

Terms

a(0) =0a(1) =0a(2) =0a(3) =6a(4) =18a(5) =31a(6) =57a(7) =80a(8) =125a(9) =161a(10) =230a(11) =282a(12) =380a(13) =451a(14) =583a(15) =676a(16) =847a(17) =965a(18) =1180a(19) =1326a(20) =1590a(21) =1767a(22) =2085a(23) =2296a(24) =2673a(25) =2921a(26) =3362a(27) =3650a(28) =4160a(29) =4491