A269945 - cp's OEIS frontend

A269945 Triangle read by rows. Stirling set numbers of order 2, T(n, n) = 1, T(n, k) = 0 if k < 0 or k > n, otherwise T(n, k) = T(n-1, k-1) + k^2*T(n-1, k), for 0 <= k <= n.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	0
7	1
8	5
9	1
10	0
11	1
12	21
13	14
14	1
15	0
16	1
17	85
18	147
19	30
20	1
21	0
22	1
23	341
24	1408
25	627
26	55
27	1
28	0
29	1
30	1365
31	13013
32	11440
33	2002
34	91
35	1
36	0
37	1
38	5461
39	118482
40	196053
41	61490
42	5278
43	140
44	1
45	0
46	1
47	21845
48	1071799
49	3255330
50	1733303
51	251498
52	12138
53	204
54	1

[1, 0, 1, 0, 1, 1, 0, 1, 5, 1, 0, 1, 21, 14, 1, 0, 1, 85, 147, 30, 1, 0, 1, 341, 1408, 627, 55, 1, 0, 1, 1365, 13013, 11440, 2002, 91, 1, 0, 1, 5461, 118482, 196053, 61490, 5278, 140, 1, 0, 1, 21845, 1071799, 3255330, 1733303, 251498, 12138, 204, 1]

cp's OEIS Frontend

A269945 Triangle read by rows. Stirling set numbers of order 2, T(n, n) = 1, T(n, k) = 0 if k < 0 or k > n, otherwise T(n, k) = T(n-1, k-1) + k^2*T(n-1, k), for 0 <= k <= n.

Table of values

List of values