A351884 - cp's OEIS frontend

A351884 Irregular triangle read by rows: T(n,k) is the number of sets of lists with distinct block sizes (as in A088311(n)) and containing exactly k lists.

n	a(n)
0	1
1	0
2	1
3	0
4	2
5	0
6	6
7	6
8	0
9	24
10	24
11	0
12	120
13	240
14	0
15	720
16	1440
17	720
18	0
19	5040
20	15120
21	5040
22	0
23	40320
24	120960
25	80640
26	0
27	362880
28	1451520
29	1088640
30	0
31	3628800
32	14515200
33	14515200
34	3628800
35	0
36	39916800
37	199584000
38	199584000
39	39916800
40	0
41	479001600
42	2395008000
43	3353011200
44	958003200

[1, 0, 1, 0, 2, 0, 6, 6, 0, 24, 24, 0, 120, 240, 0, 720, 1440, 720, 0, 5040, 15120, 5040, 0, 40320, 120960, 80640, 0, 362880, 1451520, 1088640, 0, 3628800, 14515200, 14515200, 3628800, 0, 39916800, 199584000, 199584000, 39916800, 0, 479001600, 2395008000, 3353011200, 958003200]

cp's OEIS Frontend

A351884 Irregular triangle read by rows: T(n,k) is the number of sets of lists with distinct block sizes (as in A088311(n)) and containing exactly k lists.

Table of values

List of values