A322765 - cp's OEIS frontend

A322765 Array read by upwards antidiagonals: T(m,n) = number of set partitions of the multiset consisting of one copy each of x_1, x_2, ..., x_m, and two copies each of y_1, y_2, ..., y_n, for m >= 0, n >= 0.

n	a(n)
0	1
1	1
2	2
3	2
4	4
5	9
6	5
7	11
8	26
9	66
10	15
11	36
12	92
13	249
14	712
15	52
16	135
17	371
18	1075
19	3274
20	10457
21	203
22	566
23	1663
24	5133
25	16601
26	56135
27	198091
28	877
29	2610
30	8155
31	26683
32	91226
33	325269
34	1207433
35	4659138
36	4140
37	13082
38	43263
39	149410
40	537813
41	2014321
42	7837862
43	31638625
44	132315780

[1, 1, 2, 2, 4, 9, 5, 11, 26, 66, 15, 36, 92, 249, 712, 52, 135, 371, 1075, 3274, 10457, 203, 566, 1663, 5133, 16601, 56135, 198091, 877, 2610, 8155, 26683, 91226, 325269, 1207433, 4659138, 4140, 13082, 43263, 149410, 537813, 2014321, 7837862, 31638625, 132315780]

cp's OEIS Frontend

A322765 Array read by upwards antidiagonals: T(m,n) = number of set partitions of the multiset consisting of one copy each of x_1, x_2, ..., x_m, and two copies each of y_1, y_2, ..., y_n, for m >= 0, n >= 0.

Table of values

List of values