Antidiagonal sums of A163280.

Terms

a(0) =1a(1) =6a(2) =18a(3) =41a(4) =77a(5) =133a(6) =210a(7) =310a(8) =445a(9) =602a(10) =810a(11) =1049a(12) =1347a(13) =1693a(14) =2068a(15) =2545a(16) =3028a(17) =3613a(18) =4256a(19) =4987a(20) =5817a(21) =6711a(22) =7640a(23) =8783a(24) =9962a(25) =11157a(26) =12454a(27) =13992a(28) =15615a(29) =17310