A261275 - cp's OEIS frontend

A261275 Number of set partitions C_t(n) of {1,2,...,t} into at most n parts, with an even number of elements in each part distinguished by marks; triangle C_t(n), t>=0, 0<=n<=t, read by rows.

n	a(n)
0	1
1	0
2	1
3	0
4	2
5	3
6	0
7	4
8	10
9	11
10	0
11	8
12	36
13	48
14	49
15	0
16	16
17	136
18	236
19	256
20	257
21	0
22	32
23	528
24	1248
25	1508
26	1538
27	1539
28	0
29	64
30	2080
31	6896
32	9696
33	10256
34	10298
35	10299
36	0
37	128
38	8256
39	39168
40	66384
41	74784
42	75848
43	75904
44	75905
45	0
46	256
47	32896
48	226496
49	475136
50	586352
51	607520
52	609368
53	609440
54	609441

[1, 0, 1, 0, 2, 3, 0, 4, 10, 11, 0, 8, 36, 48, 49, 0, 16, 136, 236, 256, 257, 0, 32, 528, 1248, 1508, 1538, 1539, 0, 64, 2080, 6896, 9696, 10256, 10298, 10299, 0, 128, 8256, 39168, 66384, 74784, 75848, 75904, 75905, 0, 256, 32896, 226496, 475136, 586352, 607520, 609368, 609440, 609441]

cp's OEIS Frontend

A261275 Number of set partitions C_t(n) of {1,2,...,t} into at most n parts, with an even number of elements in each part distinguished by marks; triangle C_t(n), t>=0, 0<=n<=t, read by rows.

Table of values

List of values