A076994 - cp's OEIS frontend

A076994 a(1) = 2, a(n+1) is the largest squarefree number < 2*a(n).

n	a(n)
1	2
2	3
3	5
4	7
5	13
6	23
7	43
8	85
9	167
10	331
11	661
12	1321
13	2641
14	5281
15	10561
16	21121
17	42241
18	84481
19	168961
20	337921
21	675841
22	1351681
23	2703361
24	5406721
25	10813441
26	21626881
27	43253761
28	86507521
29	173015041
30	346030081
31	692060161
32	1384120321
33	2768240641

[2, 3, 5, 7, 13, 23, 43, 85, 167, 331, 661, 1321, 2641, 5281, 10561, 21121, 42241, 84481, 168961, 337921, 675841, 1351681, 2703361, 5406721, 10813441, 21626881, 43253761, 86507521, 173015041, 346030081, 692060161, 1384120321, 2768240641]

cp's OEIS Frontend

A076994 a(1) = 2, a(n+1) is the largest squarefree number < 2*a(n).

Table of values

List of values