Number T(n,k) of endofunctions on [n] with exactly k fixed points, all of which are isolated; triangle T(n,k), n>=0, 0<=k<=n, read by rows.
A349454
Number T(n,k) of endofunctions on [n] with exactly k fixed points, all of which are isolated; triangle T(n,k), n>=0, 0<=k<=n, read by rows.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =0a(5) =1a(6) =8a(7) =3a(8) =0a(9) =1a(10) =81a(11) =32a(12) =6a(13) =0a(14) =1a(15) =1024a(16) =405a(17) =80a(18) =10a(19) =0a(20) =1a(21) =15625a(22) =6144a(23) =1215a(24) =160a(25) =15a(26) =0a(27) =1a(28) =279936a(29) =109375
External references
- oeis: A349454