Column 3 of array in A226513.

Terms

a(0) =13a(1) =44a(2) =99a(3) =184a(4) =305a(5) =468a(6) =679a(7) =944a(8) =1269a(9) =1660a(10) =2123a(11) =2664a(12) =3289a(13) =4004a(14) =4815a(15) =5728a(16) =6749a(17) =7884a(18) =9139a(19) =10520a(20) =12033a(21) =13684a(22) =15479a(23) =17424a(24) =19525a(25) =21788a(26) =24219a(27) =26824a(28) =29609a(29) =32580