A074047 - cp's OEIS frontend

A074047 a(n)=a(n-1)a(n-2)a(n-3)*(1/a(n-1)+1/a(n-2)+1/a(n-3)) starting with a(1)=a(2)=a(3)=1.

n	a(n)
1	1
2	1
3	1
4	3
5	7
6	31
7	331
8	12795
9	4642051
10	60935796571
11	283646808320375611
12	17285560913056915909539455163
13	4902995236325455290013100337511909917402705547

[1, 1, 1, 3, 7, 31, 331, 12795, 4642051, 60935796571, 283646808320375611, 17285560913056915909539455163, 4902995236325455290013100337511909917402705547]

cp's OEIS Frontend

A074047 a(n)=a(n-1)a(n-2)a(n-3)*(1/a(n-1)+1/a(n-2)+1/a(n-3)) starting with a(1)=a(2)=a(3)=1.

Table of values

List of values

cp's OEIS Frontend

A074047 a(n)=a(n-1)*a(n-2)*a(n-3)*(1/a(n-1)+1/a(n-2)+1/a(n-3)) starting with a(1)=a(2)=a(3)=1.

Table of values

List of values

A074047 a(n)=a(n-1)a(n-2)a(n-3)*(1/a(n-1)+1/a(n-2)+1/a(n-3)) starting with a(1)=a(2)=a(3)=1.