A375792 - cp's OEIS frontend

A375792 Numbers k such that 2^k == 2 (mod k-th triangular number) and not 2^k == 2 (mod k-th oblong number).

n	a(n)
1	3
2	11
3	131
4	4091
5	5851
6	17291
7	283051
8	289771
9	346963
10	1008547
11	1082971
12	3424651
13	3919771
14	6464611
15	6852691
16	7298131
17	7514851
18	8733691
19	12752251
20	16740371
21	17227891
22	19895611
23	27393211
24	30281371
25	33875323
26	40528531
27	45744931
28	68174107
29	81011971
30	98940403

[3, 11, 131, 4091, 5851, 17291, 283051, 289771, 346963, 1008547, 1082971, 3424651, 3919771, 6464611, 6852691, 7298131, 7514851, 8733691, 12752251, 16740371, 17227891, 19895611, 27393211, 30281371, 33875323, 40528531, 45744931, 68174107, 81011971, 98940403]

cp's OEIS Frontend

A375792 Numbers k such that 2^k == 2 (mod k-th triangular number) and not 2^k == 2 (mod k-th oblong number).

Table of values

List of values