A263045 - cp's OEIS frontend

A263045 a(1)=a(2)=1, a(3)=2; for n>3, a(n) = (a(n-1) + a(n-2))*a(n-3) - a(n-1).

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	4
7	2
8	10
9	38
10	58
11	902
12	35578
13	2080262
14	1906407418
15	67898268271622
16	141250085279900836858
17	269280339671247778784817867782
18	18283668752862244903904463537467802693858298
19	2582569770571288306580588933602503511656010789600193877369998342

[1, 1, 2, 1, 2, 4, 2, 10, 38, 58, 902, 35578, 2080262, 1906407418, 67898268271622, 141250085279900836858, 269280339671247778784817867782, 18283668752862244903904463537467802693858298, 2582569770571288306580588933602503511656010789600193877369998342]

cp's OEIS Frontend

A263045 a(1)=a(2)=1, a(3)=2; for n>3, a(n) = (a(n-1) + a(n-2))*a(n-3) - a(n-1).

Table of values

List of values