A064079 - cp's OEIS frontend

A064079 Zsigmondy numbers for a = 3, b = 1: Zs(n, 3, 1) is the greatest divisor of 3^n - 1^n (A024023) that is relatively prime to 3^m - 1^m for all positive integers m < n.

n	a(n)
1	2
2	1
3	13
4	5
5	121
6	7
7	1093
8	41
9	757
10	61
11	88573
12	73
13	797161
14	547
15	4561
16	3281
17	64570081
18	703
19	581130733
20	1181
21	368089
22	44287
23	47071589413
24	6481
25	3501192601
26	398581
27	387440173
28	478297
29	34315188682441
30	8401
31	308836698141973
32	21523361

[2, 1, 13, 5, 121, 7, 1093, 41, 757, 61, 88573, 73, 797161, 547, 4561, 3281, 64570081, 703, 581130733, 1181, 368089, 44287, 47071589413, 6481, 3501192601, 398581, 387440173, 478297, 34315188682441, 8401, 308836698141973, 21523361]

cp's OEIS Frontend

A064079 Zsigmondy numbers for a = 3, b = 1: Zs(n, 3, 1) is the greatest divisor of 3^n - 1^n (A024023) that is relatively prime to 3^m - 1^m for all positive integers m < n.

Table of values

List of values