A008955 - cp's OEIS frontend

A008955 Triangle of central factorial numbers |t(2n,2n-2k)| read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	5
5	4
6	1
7	14
8	49
9	36
10	1
11	30
12	273
13	820
14	576
15	1
16	55
17	1023
18	7645
19	21076
20	14400
21	1
22	91
23	3003
24	44473
25	296296
26	773136
27	518400
28	1
29	140
30	7462
31	191620
32	2475473
33	15291640
34	38402064
35	25401600
36	1
37	204
38	16422
39	669188
40	14739153
41	173721912
42	1017067024
43	2483133696
44	1625702400

[1, 1, 1, 1, 5, 4, 1, 14, 49, 36, 1, 30, 273, 820, 576, 1, 55, 1023, 7645, 21076, 14400, 1, 91, 3003, 44473, 296296, 773136, 518400, 1, 140, 7462, 191620, 2475473, 15291640, 38402064, 25401600, 1, 204, 16422, 669188, 14739153, 173721912, 1017067024, 2483133696, 1625702400]

cp's OEIS Frontend

A008955 Triangle of central factorial numbers |t(2n,2n-2k)| read by rows.

Table of values

List of values