A177122 - cp's OEIS frontend

A177122 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)=6, k=1 and l=1.

n	a(n)
0	1
1	6
2	15
3	70
4	325
5	1721
6	9449
7	54208
8	318943
9	1918427
10	11731931
11	72746099
12	456238871
13	2889149141
14	18447220199
15	118630723058
16	767675233277
17	4995186818805
18	32662752627705
19	214514289725729
20	1414397208516269

[1, 6, 15, 70, 325, 1721, 9449, 54208, 318943, 1918427, 11731931, 72746099, 456238871, 2889149141, 18447220199, 118630723058, 767675233277, 4995186818805, 32662752627705, 214514289725729, 1414397208516269]

cp's OEIS Frontend

A177122 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)=6, k=1 and l=1.

Table of values

List of values