A078939 - cp's OEIS frontend

A078939 Fourth power of lower triangular matrix of A056857 (successive equalities in set partitions of n).

n	a(n)
0	1
1	4
2	1
3	20
4	8
5	1
6	116
7	60
8	12
9	1
10	756
11	464
12	120
13	16
14	1
15	5428
16	3780
17	1160
18	200
19	20
20	1
21	42356
22	32568
23	11340
24	2320
25	300
26	24
27	1
28	355636
29	296492
30	113988
31	26460
32	4060
33	420
34	28
35	1
36	3188340
37	2845088
38	1185968
39	303968
40	52920
41	6496
42	560
43	32
44	1
45	30333492
46	28695060

[1, 4, 1, 20, 8, 1, 116, 60, 12, 1, 756, 464, 120, 16, 1, 5428, 3780, 1160, 200, 20, 1, 42356, 32568, 11340, 2320, 300, 24, 1, 355636, 296492, 113988, 26460, 4060, 420, 28, 1, 3188340, 2845088, 1185968, 303968, 52920, 6496, 560, 32, 1, 30333492, 28695060]

cp's OEIS Frontend

A078939 Fourth power of lower triangular matrix of A056857 (successive equalities in set partitions of n).

Table of values

List of values