A343305 - cp's OEIS frontend

A343305 a(0) = ... = a(3) = 1; a(n) = a(n-4) + Sum_{k=0..n-5} a(k) * a(n-k-5).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	3
7	4
8	5
9	7
10	11
11	17
12	25
13	36
14	53
15	81
16	125
17	191
18	289
19	439
20	675
21	1046
22	1621
23	2506
24	3877
25	6023
26	9395
27	14681
28	22947
29	35890
30	56231
31	88285
32	138825
33	218493
34	344145
35	542618
36	856597
37	1353766
38	2141383
39	3389797
40	5370219
41	8514773
42	13511673
43	21456808
44	34096503
45	54216636

[1, 1, 1, 1, 1, 2, 3, 4, 5, 7, 11, 17, 25, 36, 53, 81, 125, 191, 289, 439, 675, 1046, 1621, 2506, 3877, 6023, 9395, 14681, 22947, 35890, 56231, 88285, 138825, 218493, 344145, 542618, 856597, 1353766, 2141383, 3389797, 5370219, 8514773, 13511673, 21456808, 34096503, 54216636]

cp's OEIS Frontend

A343305 a(0) = ... = a(3) = 1; a(n) = a(n-4) + Sum_{k=0..n-5} a(k) * a(n-k-5).

Table of values

List of values