Sums of the antidiagonals of Sundaram's sieve (A159919).

Terms

a(0) =4a(1) =14a(2) =32a(3) =60a(4) =100a(5) =154a(6) =224a(7) =312a(8) =420a(9) =550a(10) =704a(11) =884a(12) =1092a(13) =1330a(14) =1600a(15) =1904a(16) =2244a(17) =2622a(18) =3040a(19) =3500a(20) =4004a(21) =4554a(22) =5152a(23) =5800a(24) =6500a(25) =7254a(26) =8064a(27) =8932a(28) =9860a(29) =10850