A140797 - cp's OEIS frontend

A140797 Numbers of the form (2^p^N-1)/(2^p^(N-1)-1), where N>0, p is prime.

n	a(n)
1	3
2	5
3	7
4	17
5	31
6	73
7	127
8	257
9	2047
10	8191
11	65537
12	131071
13	262657
14	524287
15	1082401
16	8388607
17	536870911
18	2147483647
19	4294967297
20	137438953471
21	2199023255551
22	4432676798593
23	8796093022207
24	140737488355327
25	9007199254740991
26	18014398643699713
27	576460752303423487

[3, 5, 7, 17, 31, 73, 127, 257, 2047, 8191, 65537, 131071, 262657, 524287, 1082401, 8388607, 536870911, 2147483647, 4294967297, 137438953471, 2199023255551, 4432676798593, 8796093022207, 140737488355327, 9007199254740991, 18014398643699713, 576460752303423487]

cp's OEIS Frontend

A140797 Numbers of the form (2^p^N-1)/(2^p^(N-1)-1), where N>0, p is prime.

Table of values

List of values