A176756 - cp's OEIS frontend

A176756 Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=4, k=0 and l=-2.

n	a(n)
0	1
1	4
2	6
3	26
4	98
5	438
6	1970
7	9294
8	44698
9	219766
10	1096930
11	5549614
12	28383498
13	146538150
14	762627954
15	3996744862
16	21074272538
17	111723476502
18	595145562242
19	3183988894350
20	17100312159018
21	92164073738118
22	498318304290450

[1, 4, 6, 26, 98, 438, 1970, 9294, 44698, 219766, 1096930, 5549614, 28383498, 146538150, 762627954, 3996744862, 21074272538, 111723476502, 595145562242, 3183988894350, 17100312159018, 92164073738118, 498318304290450]

cp's OEIS Frontend

A176756 Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=4, k=0 and l=-2.

Table of values

List of values