A136011 - cp's OEIS frontend

A136011 Irregular triangle read by rows, Stirling numbers of the second kind: columns shifted to allow (1, 1, 2, 2, 3, 3, ...) terms per row.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	3
7	1
8	7
9	1
10	1
11	15
12	6
13	1
14	31
15	25
16	1
17	1
18	63
19	90
20	10
21	1
22	127
23	301
24	65
25	1
26	1
27	255
28	966
29	350
30	15
31	1
32	511
33	3025
34	1701
35	140
36	1
37	1
38	1023
39	9330
40	7770
41	1050
42	21
43	1
44	2047
45	28501
46	34105
47	6951
48	266
49	1
50	1
51	4095
52	86526
53	145750
54	42525
55	2646
56	28

[1, 1, 1, 1, 1, 3, 1, 7, 1, 1, 15, 6, 1, 31, 25, 1, 1, 63, 90, 10, 1, 127, 301, 65, 1, 1, 255, 966, 350, 15, 1, 511, 3025, 1701, 140, 1, 1, 1023, 9330, 7770, 1050, 21, 1, 2047, 28501, 34105, 6951, 266, 1, 1, 4095, 86526, 145750, 42525, 2646, 28]

cp's OEIS Frontend

A136011 Irregular triangle read by rows, Stirling numbers of the second kind: columns shifted to allow (1, 1, 2, 2, 3, 3, ...) terms per row.

Table of values

List of values