A124973 - cp's OEIS frontend

A124973 a(n) = Sum_{k=0..(n-2)/2} a(k)a*(n-1-k), with a(0) = a(1) = 1.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	3
6	6
7	11
8	22
9	42
10	87
11	174
12	365
13	745
14	1587
15	3303
16	7103
17	14974
18	32477
19	69284
20	151172
21	325077
22	713400
23	1545719
24	3406989
25	7423648
26	16429555
27	35992438
28	79912474
29	175785514
30	391488688
31	864591621
32	1930333822
33	4276537000

[1, 1, 1, 1, 2, 3, 6, 11, 22, 42, 87, 174, 365, 745, 1587, 3303, 7103, 14974, 32477, 69284, 151172, 325077, 713400, 1545719, 3406989, 7423648, 16429555, 35992438, 79912474, 175785514, 391488688, 864591621, 1930333822, 4276537000]

cp's OEIS Frontend

A124973 a(n) = Sum_{k=0..(n-2)/2} a(k)a*(n-1-k), with a(0) = a(1) = 1.

Table of values

List of values