Sum of the first k-1 numbers in the k-th column of the natural number array A000027, by antidiagonals.

A185788

Sum of the first k-1 numbers in the k-th column of the natural number array A000027, by antidiagonals.

Terms

    a(0) =0a(1) =2a(2) =12a(3) =37a(4) =84a(5) =160a(6) =272a(7) =427a(8) =632a(9) =894a(10) =1220a(11) =1617a(12) =2092a(13) =2652a(14) =3304a(15) =4055a(16) =4912a(17) =5882a(18) =6972a(19) =8189a(20) =9540a(21) =11032a(22) =12672a(23) =14467a(24) =16424a(25) =18550a(26) =20852a(27) =23337a(28) =26012a(29) =28884

External references