Triangle of 3rd central factorial numbers T(n,k).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =9a(5) =1a(6) =1a(7) =73a(8) =36a(9) =1a(10) =1a(11) =585a(12) =1045a(13) =100a(14) =1a(15) =1a(16) =4681a(17) =28800a(18) =7445a(19) =225a(20) =1a(21) =1a(22) =37449a(23) =782281a(24) =505280a(25) =35570a(26) =441a(27) =1a(28) =1a(29) =299593