A176677 - cp's OEIS frontend

A176677 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)=1, k=0 and l=-1.

n	a(n)
0	1
1	1
2	1
3	2
4	5
5	14
6	41
7	123
8	375
9	1158
10	3615
11	11393
12	36209
13	115940
14	373709
15	1211740
16	3949969
17	12937612
18	42558745
19	140547051
20	465799527
21	1548766044
22	5164917003
23	17271369744
24	57900615135
25	194558333460
26	655168354935
27	2210681734671

[1, 1, 1, 2, 5, 14, 41, 123, 375, 1158, 3615, 11393, 36209, 115940, 373709, 1211740, 3949969, 12937612, 42558745, 140547051, 465799527, 1548766044, 5164917003, 17271369744, 57900615135, 194558333460, 655168354935, 2210681734671]

cp's OEIS Frontend

A176677 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)=1, k=0 and l=-1.

Table of values

List of values