A133800 - cp's OEIS frontend

A133800 Triangle read by rows in which row n gives number of ways to partition n labeled elements into k pie slices allowing the pie to be turned over (n >= 1, 1 <= k <= n).

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	7
9	6
10	3
11	1
12	15
13	25
14	30
15	12
16	1
17	31
18	90
19	195
20	180
21	60
22	1
23	63
24	301
25	1050
26	1680
27	1260
28	360
29	1
30	127
31	966
32	5103
33	12600
34	15960
35	10080
36	2520
37	1
38	255
39	3025
40	23310
41	83412
42	158760
43	166320
44	90720
45	20160
46	1
47	511
48	9330
49	102315
50	510300
51	1369620

[1, 1, 1, 1, 3, 1, 1, 7, 6, 3, 1, 15, 25, 30, 12, 1, 31, 90, 195, 180, 60, 1, 63, 301, 1050, 1680, 1260, 360, 1, 127, 966, 5103, 12600, 15960, 10080, 2520, 1, 255, 3025, 23310, 83412, 158760, 166320, 90720, 20160, 1, 511, 9330, 102315, 510300, 1369620]

cp's OEIS Frontend

A133800 Triangle read by rows in which row n gives number of ways to partition n labeled elements into k pie slices allowing the pie to be turned over (n >= 1, 1 <= k <= n).

Table of values

List of values