A245732 - cp's OEIS frontend

A245732 Number T(n,k) of endofunctions on [n] such that at least one preimage with cardinality >=k exists and a nonempty preimage of j implies that all i<=j have preimages with cardinality >=k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

n	a(n)
0	1
1	1
2	1
3	4
4	3
5	1
6	27
7	13
8	1
9	1
10	256
11	75
12	7
13	1
14	1
15	3125
16	541
17	21
18	1
19	1
20	1
21	46656
22	4683
23	141
24	21
25	1
26	1
27	1
28	823543
29	47293
30	743
31	71
32	1
33	1
34	1
35	1
36	16777216
37	545835
38	5699
39	183
40	71
41	1
42	1
43	1
44	1
45	387420489
46	7087261
47	42241
48	2101
49	253
50	1
51	1
52	1
53	1
54	1

[1, 1, 1, 4, 3, 1, 27, 13, 1, 1, 256, 75, 7, 1, 1, 3125, 541, 21, 1, 1, 1, 46656, 4683, 141, 21, 1, 1, 1, 823543, 47293, 743, 71, 1, 1, 1, 1, 16777216, 545835, 5699, 183, 71, 1, 1, 1, 1, 387420489, 7087261, 42241, 2101, 253, 1, 1, 1, 1, 1]

cp's OEIS Frontend

A245732 Number T(n,k) of endofunctions on [n] such that at least one preimage with cardinality >=k exists and a nonempty preimage of j implies that all i<=j have preimages with cardinality >=k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Table of values

List of values