Chocolate numbers read as a triangle across rows: T(n,k), n >= 1, 1 <= k <= n.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =2a(6) =6a(7) =56a(8) =56a(9) =6a(10) =24a(11) =1712a(12) =9408a(13) =1712a(14) =24a(15) =120a(16) =92800a(17) =4948992a(18) =4948992a(19) =92800a(20) =120a(21) =720a(22) =7918592a(23) =6085088256a(24) =63352393728a(25) =6085088256a(26) =7918592a(27) =720a(28) =5040a(29) =984237056