Antidiagonal sums of square array A082011 divided by the number of the antidiagonal.

Terms

a(0) =2a(1) =4a(2) =13a(3) =20a(4) =41a(5) =63a(6) =95a(7) =132a(8) =181a(9) =229a(10) =291a(11) =363a(12) =439a(13) =529a(14) =617a(15) =717a(16) =833a(17) =960a(18) =1093a(19) =1220a(20) =1377a(21) =1530a(22) =1695a(23) =1883a(24) =2075a(25) =2273a(26) =2475a(27) =2699a(28) =2921a(29) =3168