Sum of antidiagonals of A060736.

Terms

a(0) =0a(1) =1a(2) =6a(3) =17a(4) =40a(5) =75a(6) =130a(7) =203a(8) =304a(9) =429a(10) =590a(11) =781a(12) =1016a(13) =1287a(14) =1610a(15) =1975a(16) =2400a(17) =2873a(18) =3414a(19) =4009a(20) =4680a(21) =5411a(22) =6226a(23) =7107a(24) =8080a(25) =9125a(26) =10270a(27) =11493a(28) =12824a(29) =14239