A258967 - cp's OEIS frontend

A258967 a(1)=1, a(2)=2, a(3)=3, a(n) = ceiling(sqrt(a(n-1)a(n-2)a(n-3))), n>3.

n	a(n)
1	1
2	2
3	3
4	3
5	5
6	7
7	11
8	20
9	40
10	94
11	275
12	1017
13	5128
14	37871
15	444415
16	9290130
17	395420005
18	40404949540
19	12183091294648
20	13951642918891149
21	82872169787001239679
22	3753148776564192982863648
23	2083123034674803589767277778237
24	25454214863632278822694894280883452911

[1, 2, 3, 3, 5, 7, 11, 20, 40, 94, 275, 1017, 5128, 37871, 444415, 9290130, 395420005, 40404949540, 12183091294648, 13951642918891149, 82872169787001239679, 3753148776564192982863648, 2083123034674803589767277778237, 25454214863632278822694894280883452911]

cp's OEIS Frontend

A258967 a(1)=1, a(2)=2, a(3)=3, a(n) = ceiling(sqrt(a(n-1)a(n-2)a(n-3))), n>3.

Table of values

List of values

cp's OEIS Frontend

A258967 a(1)=1, a(2)=2, a(3)=3, a(n) = ceiling(sqrt(a(n-1)*a(n-2)*a(n-3))), n>3.

Table of values

List of values

A258967 a(1)=1, a(2)=2, a(3)=3, a(n) = ceiling(sqrt(a(n-1)a(n-2)a(n-3))), n>3.