Antidiagonal sums of the triangle A120070.

Terms

a(0) =3a(1) =8a(2) =20a(3) =36a(4) =63a(5) =96a(6) =144a(7) =200a(8) =275a(9) =360a(10) =468a(11) =588a(12) =735a(13) =896a(14) =1088a(15) =1296a(16) =1539a(17) =1800a(18) =2100a(19) =2420a(20) =2783a(21) =3168a(22) =3600a(23) =4056a(24) =4563a(25) =5096a(26) =5684a(27) =6300a(28) =6975a(29) =7680