A209633 - cp's OEIS frontend

A209633 Number of ordered set partitions of the multiset [a,a,1,1,...,1] with two "a" and n "1".

n	a(n)
0	1
1	2
2	7
3	15
4	33
5	59
6	111
7	182
8	307
9	481
10	757
11	1134
12	1713
13	2483
14	3611
15	5117
16	7238
17	10029
18	13888
19	18900
20	25682
21	34442
22	46057
23	60934
24	80428
25	105159
26	137137
27	177495
28	229069
29	293694
30	375582
31	477499
32	605526
33	764060
34	961603
35	1204898
36	1506142
37	1875150
38	2329185
39	2882939

[1, 2, 7, 15, 33, 59, 111, 182, 307, 481, 757, 1134, 1713, 2483, 3611, 5117, 7238, 10029, 13888, 18900, 25682, 34442, 46057, 60934, 80428, 105159, 137137, 177495, 229069, 293694, 375582, 477499, 605526, 764060, 961603, 1204898, 1506142, 1875150, 2329185, 2882939]

cp's OEIS Frontend

A209633 Number of ordered set partitions of the multiset [a,a,1,1,...,1] with two "a" and n "1".

Table of values

List of values