A348451 - cp's OEIS frontend

A348451 Triangle read by rows: T(n,k) (1 <= k <= n) is the number of 3-extensions of an n-set over all choices of 3-partitions of the n-set.

n	a(n)
1	1
2	2
3	1
4	5
5	4
6	1
7	14
8	13
9	6
10	1
11	41
12	40
13	25
14	9
15	1
16	122
17	121
18	90
19	48
20	12
21	1
22	365
23	364
24	301
25	202
26	78
27	14
28	1
29	1094
30	1093
31	966
32	747
33	380
34	106
35	16
36	1
37	3281
38	3280
39	3025
40	2559
41	1571
42	592
43	141
44	18
45	1
46	9842
47	9841
48	9330
49	8362
50	5864
51	2755
52	906
53	180
54	20
55	1

[1, 2, 1, 5, 4, 1, 14, 13, 6, 1, 41, 40, 25, 9, 1, 122, 121, 90, 48, 12, 1, 365, 364, 301, 202, 78, 14, 1, 1094, 1093, 966, 747, 380, 106, 16, 1, 3281, 3280, 3025, 2559, 1571, 592, 141, 18, 1, 9842, 9841, 9330, 8362, 5864, 2755, 906, 180, 20, 1]

cp's OEIS Frontend

A348451 Triangle read by rows: T(n,k) (1 <= k <= n) is the number of 3-extensions of an n-set over all choices of 3-partitions of the n-set.

Table of values

List of values