A177215 - cp's OEIS frontend

A177215 Numbers k that are the products of two distinct primes such that 2k-1, 4k-3, 8k-7, 16k-15, 32k-31 and 64k-63 are also products of two distinct primes.

n	a(n)
1	694
2	3403
3	4714
4	5062
5	5353
6	7495
7	11293
8	12139
9	13798
10	14191
11	19735
12	21439
13	22585
14	24277
15	25009
16	25399
17	26734
18	26899
19	31261
20	32959
21	35299
22	36199
23	44869
24	48949
25	49471
26	50797
27	58003
28	60181
29	62521
30	70759
31	72397
32	73909
33	75631
34	79021
35	83086

[694, 3403, 4714, 5062, 5353, 7495, 11293, 12139, 13798, 14191, 19735, 21439, 22585, 24277, 25009, 25399, 26734, 26899, 31261, 32959, 35299, 36199, 44869, 48949, 49471, 50797, 58003, 60181, 62521, 70759, 72397, 73909, 75631, 79021, 83086]

cp's OEIS Frontend

A177215 Numbers k that are the products of two distinct primes such that 2k-1, 4k-3, 8k-7, 16k-15, 32k-31 and 64k-63 are also products of two distinct primes.

Table of values

List of values

cp's OEIS Frontend

A177215 Numbers k that are the products of two distinct primes such that 2*k-1, 4*k-3, 8*k-7, 16*k-15, 32*k-31 and 64*k-63 are also products of two distinct primes.

Table of values

List of values

A177215 Numbers k that are the products of two distinct primes such that 2k-1, 4k-3, 8k-7, 16k-15, 32k-31 and 64k-63 are also products of two distinct primes.