Triangle read by rows: T(i,j) = (T(i-1,j) + i)*i.

Terms

a(0) =1a(1) =6a(2) =4a(3) =27a(4) =21a(5) =9a(6) =124a(7) =100a(8) =52a(9) =16a(10) =645a(11) =525a(12) =285a(13) =105a(14) =25a(15) =3906a(16) =3186a(17) =1746a(18) =666a(19) =186a(20) =36a(21) =27391a(22) =22351a(23) =12271a(24) =4711a(25) =1351a(26) =301a(27) =49a(28) =219192a(29) =178872