A354737 - cp's OEIS frontend

A354737 a(0) = a(1) = 1; a(n) = n * Sum_{k=0..n-2} a(k) * a(n-k-2).

n	a(n)
0	1
1	1
2	2
3	6
4	20
5	80
6	336
7	1568
8	7584
9	39312
10	210080
11	1180256
12	6813312
13	40890304
14	251528704
15	1597332480
16	10376040448
17	69259146752
18	472084038144
19	3295588345344
20	23459477468160
21	170610216311808
22	1263629972183040
23	9543419750909952
24	73322350509367296
25	573544008429363200

[1, 1, 2, 6, 20, 80, 336, 1568, 7584, 39312, 210080, 1180256, 6813312, 40890304, 251528704, 1597332480, 10376040448, 69259146752, 472084038144, 3295588345344, 23459477468160, 170610216311808, 1263629972183040, 9543419750909952, 73322350509367296, 573544008429363200]

cp's OEIS Frontend

A354737 a(0) = a(1) = 1; a(n) = n * Sum_{k=0..n-2} a(k) * a(n-k-2).

Table of values

List of values