A187557 - cp's OEIS frontend

A187557 Triangle read by rows of products of Stirling numbers of the second kind (A008277): a(n,k) = S(n,k) S(n+1,k+1).

n	a(n)
0	1
1	0
2	1
3	0
4	3
5	1
6	0
7	7
8	18
9	1
10	0
11	15
12	175
13	60
14	1
15	0
16	31
17	1350
18	1625
19	150
20	1
21	0
22	63
23	9331
24	31500
25	9100
26	315
27	1
28	0
29	127
30	60858
31	512001
32	367500
33	37240
34	588
35	1
36	0
37	255
38	384175
39	7505820
40	11823651
41	2778300
42	122892
43	1008
44	1
45	0
46	511
47	2379150
48	103167625
49	330419250
50	158670477
51	15558480
52	346500
53	1620
54	1
55	0
56	1023
57	14564011
58	1359847500
59	8414726650
60	7632684675
61	1460631249
62	69854400
63	866250
64	2475
65	1

[1, 0, 1, 0, 3, 1, 0, 7, 18, 1, 0, 15, 175, 60, 1, 0, 31, 1350, 1625, 150, 1, 0, 63, 9331, 31500, 9100, 315, 1, 0, 127, 60858, 512001, 367500, 37240, 588, 1, 0, 255, 384175, 7505820, 11823651, 2778300, 122892, 1008, 1, 0, 511, 2379150, 103167625, 330419250, 158670477, 15558480, 346500, 1620, 1, 0, 1023, 14564011, 1359847500, 8414726650, 7632684675, 1460631249, 69854400, 866250, 2475, 1]

cp's OEIS Frontend

A187557 Triangle read by rows of products of Stirling numbers of the second kind (A008277): a(n,k) = S(n,k) S(n+1,k+1).

Table of values

List of values