Infinite triangle T(n, k), n > 0, k = 1..n, read and filled in the greedy way by rows with distinct positive integers such that for any n > 1, k = 2..n, T(n, k) = T(n-1, k-1) * T(n, k-1).

A375761

Infinite triangle T(n, k), n > 0, k = 1..n, read and filled in the greedy way by rows with distinct positive integers such that for any n > 1, k = 2..n, T(n, k) = T(n-1, k-1) * T(n, k-1).

Terms

    a(0) =2a(1) =3a(2) =6a(3) =4a(4) =12a(5) =72a(6) =5a(7) =20a(8) =240a(9) =17280a(10) =7a(11) =35a(12) =700a(13) =168000a(14) =2903040000a(15) =8a(16) =56a(17) =1960a(18) =1372000a(19) =230496000000a(21) =10a(22) =80a(23) =4480a(24) =8780800

External references