A334061 - cp's OEIS frontend

A334061 Triangle read by rows: T(n,k) is the number of set partitions of {1..4n} into n sets of 4 with k disjoint strings of adjacent sets, each being a contiguous set of elements.

n	a(n)
0	1
1	0
2	1
3	31
4	4
5	0
6	5474
7	292
8	9
9	0
10	2554091
11	72318
12	1206
13	10
14	0
15	2502018819
16	43707943
17	438987
18	2871
19	5
20	0
21	4456194509950
22	52717010017
23	351487598
24	1622954
25	4355
26	1
27	0
28	13077453070386914
29	111615599664989
30	528618296314
31	1764575884
32	4080889
33	4385
34	0
35	0

[1, 0, 1, 31, 4, 0, 5474, 292, 9, 0, 2554091, 72318, 1206, 10, 0, 2502018819, 43707943, 438987, 2871, 5, 0, 4456194509950, 52717010017, 351487598, 1622954, 4355, 1, 0, 13077453070386914, 111615599664989, 528618296314, 1764575884, 4080889, 4385, 0, 0]

cp's OEIS Frontend

A334061 Triangle read by rows: T(n,k) is the number of set partitions of {1..4n} into n sets of 4 with k disjoint strings of adjacent sets, each being a contiguous set of elements.

Table of values

List of values