A177125 - cp's OEIS frontend

A177125 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)=9, k=1 and l=1.

n	a(n)
0	1
1	9
2	21
3	127
4	637
5	4007
6	24821
7	164659
8	1106197
9	7642295
10	53521277
11	380565539
12	2735155565
13	19854481655
14	145295269157
15	1070969265539
16	7943300521541
17	59241248227575
18	443987081678157
19	3342101935397795
20	25256877059336861

[1, 9, 21, 127, 637, 4007, 24821, 164659, 1106197, 7642295, 53521277, 380565539, 2735155565, 19854481655, 145295269157, 1070969265539, 7943300521541, 59241248227575, 443987081678157, 3342101935397795, 25256877059336861]

cp's OEIS Frontend

A177125 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)=9, k=1 and l=1.

Table of values

List of values