Triangle read by rows: T(n,k) = number of labeled endofunctions on n points with k fixed points.

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =2a(5) =1a(6) =8a(7) =12a(8) =6a(9) =1a(10) =81a(11) =108a(12) =54a(13) =12a(14) =1a(15) =1024a(16) =1280a(17) =640a(18) =160a(19) =20a(20) =1a(21) =15625a(22) =18750a(23) =9375a(24) =2500a(25) =375a(26) =30a(27) =1a(28) =279936a(29) =326592