A203761 - cp's OEIS frontend

A203761 a(n)=f(a(n-1)+1,a(n-2),a(n-3)), where f(x,y,z)=yz+zx+xy and a(1)=0, a(2)=0, a(3)=1.

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	2
7	3
8	14
9	81
10	1436
11	137649
12	208931366
13	29059416843159
14	6075423684633064285934
15	176549538697128711514244195056431069
16	1072613254042004122844787854494321338954112455109333945016

[0, 0, 1, 0, 1, 2, 3, 14, 81, 1436, 137649, 208931366, 29059416843159, 6075423684633064285934, 176549538697128711514244195056431069, 1072613254042004122844787854494321338954112455109333945016]

cp's OEIS Frontend

A203761 a(n)=f(a(n-1)+1,a(n-2),a(n-3)), where f(x,y,z)=yz+zx+xy and a(1)=0, a(2)=0, a(3)=1.

Table of values

List of values