A346047 - cp's OEIS frontend

A346047 a(0) = a(1) = a(2) = 1; a(n) = Sum_{k=1..n-3} a(k) * a(n-k-3).

n	a(n)
0	1
1	1
2	1
3	0
4	1
5	2
6	2
7	2
8	4
9	8
10	10
11	13
12	24
13	42
14	61
15	90
16	156
17	265
18	410
19	646
20	1093
21	1834
22	2948
23	4789
24	8050
25	13475
26	22129
27	36570
28	61435
29	103039
30	171384
31	286156
32	481691
33	810502
34	1359194
35	2284789
36	3856974
37	6512001
38	10982193
39	18550116
40	31406597
41	53194727
42	90082902

[1, 1, 1, 0, 1, 2, 2, 2, 4, 8, 10, 13, 24, 42, 61, 90, 156, 265, 410, 646, 1093, 1834, 2948, 4789, 8050, 13475, 22129, 36570, 61435, 103039, 171384, 286156, 481691, 810502, 1359194, 2284789, 3856974, 6512001, 10982193, 18550116, 31406597, 53194727, 90082902]

cp's OEIS Frontend

A346047 a(0) = a(1) = a(2) = 1; a(n) = Sum_{k=1..n-3} a(k) * a(n-k-3).

Table of values

List of values