A374427 - cp's OEIS frontend

A374427 Triangle read by rows: T(n, k) = n! * 2^k * hypergeom([-k], [-n], -1/2).

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	5
6	6
7	10
8	17
9	29
10	24
11	42
12	74
13	131
14	233
15	120
16	216
17	390
18	706
19	1281
20	2329
21	720
22	1320
23	2424
24	4458
25	8210
26	15139
27	27949
28	5040
29	9360
30	17400
31	32376
32	60294
33	112378
34	209617
35	391285
36	40320
37	75600
38	141840
39	266280
40	500184
41	940074
42	1767770
43	3325923
44	6260561

[1, 1, 1, 2, 3, 5, 6, 10, 17, 29, 24, 42, 74, 131, 233, 120, 216, 390, 706, 1281, 2329, 720, 1320, 2424, 4458, 8210, 15139, 27949, 5040, 9360, 17400, 32376, 60294, 112378, 209617, 391285, 40320, 75600, 141840, 266280, 500184, 940074, 1767770, 3325923, 6260561]

cp's OEIS Frontend

A374427 Triangle read by rows: T(n, k) = n! * 2^k * hypergeom([-k], [-n], -1/2).

Table of values

List of values