A334062 - cp's OEIS frontend

A334062 Triangle read by rows: T(n,k) is the number of non-crossing set partitions of {1..4n} into n sets of 4 with k of the sets being a contiguous set of elements.

n	a(n)
1	1
2	3
3	1
4	9
5	12
6	1
7	27
8	81
9	31
10	1
11	81
12	432
13	390
14	65
15	1
16	243
17	2025
18	3330
19	1365
20	120
21	1
22	729
23	8748
24	22815
25	17415
26	3909
27	203
28	1
29	2187
30	35721
31	135513
32	166320
33	70938
34	9730
35	322
36	1
37	6561
38	139968
39	728028
40	1312038
41	911358
42	242004
43	21816
44	486
45	1
46	19683
47	531441
48	3630420
49	9032310
50	9294264
51	4067658
52	722316
53	45090
54	705
55	1

[1, 3, 1, 9, 12, 1, 27, 81, 31, 1, 81, 432, 390, 65, 1, 243, 2025, 3330, 1365, 120, 1, 729, 8748, 22815, 17415, 3909, 203, 1, 2187, 35721, 135513, 166320, 70938, 9730, 322, 1, 6561, 139968, 728028, 1312038, 911358, 242004, 21816, 486, 1, 19683, 531441, 3630420, 9032310, 9294264, 4067658, 722316, 45090, 705, 1]

cp's OEIS Frontend

A334062 Triangle read by rows: T(n,k) is the number of non-crossing set partitions of {1..4n} into n sets of 4 with k of the sets being a contiguous set of elements.

Table of values

List of values