A086915 - cp's OEIS frontend

A086915 Triangle read by rows: T(n,k) = 2^k * (n!/k!)*binomial(n-1,k-1).

n	a(n)
1	2
2	4
3	4
4	12
5	24
6	8
7	48
8	144
9	96
10	16
11	240
12	960
13	960
14	320
15	32
16	1440
17	7200
18	9600
19	4800
20	960
21	64
22	10080
23	60480
24	100800
25	67200
26	20160
27	2688
28	128
29	80640
30	564480
31	1128960
32	940800
33	376320
34	75264
35	7168
36	256
37	725760
38	5806080
39	13547520
40	13547520
41	6773760
42	1806336

[2, 4, 4, 12, 24, 8, 48, 144, 96, 16, 240, 960, 960, 320, 32, 1440, 7200, 9600, 4800, 960, 64, 10080, 60480, 100800, 67200, 20160, 2688, 128, 80640, 564480, 1128960, 940800, 376320, 75264, 7168, 256, 725760, 5806080, 13547520, 13547520, 6773760, 1806336]

cp's OEIS Frontend

A086915 Triangle read by rows: T(n,k) = 2^k * (n!/k!)*binomial(n-1,k-1).

Table of values

List of values