A176830 - cp's OEIS frontend

A176830 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=1 and l=-1.

n	a(n)
0	1
1	4
2	9
3	36
4	147
5	667
6	3163
7	15610
8	79121
9	409697
10	2157185
11	11514865
12	62167261
13	338870851
14	1862411885
15	10308811304
16	57417591755
17	321563019095
18	1809699812171
19	10229230730987
20	58047787492463
21	330576576766193

[1, 4, 9, 36, 147, 667, 3163, 15610, 79121, 409697, 2157185, 11514865, 62167261, 338870851, 1862411885, 10308811304, 57417591755, 321563019095, 1809699812171, 10229230730987, 58047787492463, 330576576766193]

cp's OEIS Frontend

A176830 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=1 and l=-1.

Table of values

List of values