A239038 - cp's OEIS frontend

A239038 Semiprimes of the form (2^k - m)(m2^k - 1).

n	a(n)
1	9
2	14
3	49
4	55
5	94
6	115
7	446
8	611
9	869
10	961
11	4031
12	4315
13	7891
14	7934
15	8143
16	11651
17	16129
18	16255
19	32254
20	37301
21	51089
22	54701
23	60311
24	64931
25	65279
26	65441
27	241519
28	287509
29	321029
30	367459
31	384799
32	446201
33	495409
34	513847
35	521029
36	808691
37	1297915
38	1582619
39	1685219
40	1883681

[9, 14, 49, 55, 94, 115, 446, 611, 869, 961, 4031, 4315, 7891, 7934, 8143, 11651, 16129, 16255, 32254, 37301, 51089, 54701, 60311, 64931, 65279, 65441, 241519, 287509, 321029, 367459, 384799, 446201, 495409, 513847, 521029, 808691, 1297915, 1582619, 1685219, 1883681]

cp's OEIS Frontend

A239038 Semiprimes of the form (2^k - m)(m2^k - 1).

Table of values

List of values

cp's OEIS Frontend

A239038 Semiprimes of the form (2^k - m)*(m*2^k - 1).

Table of values

List of values

A239038 Semiprimes of the form (2^k - m)(m2^k - 1).