A320675 - cp's OEIS frontend

A320675 Positive integers m with binary expansion (b_1, ..., b_k) (where k = A070939(m)) such that b_i = [gcd(m, i)=1] for i = 1..k (where [] is an Iverson bracket).

n	a(n)
1	1
2	2
3	3
4	7
5	10
6	20
7	27
8	31
9	40
10	127
11	138
12	219
13	245
14	276
15	552
16	650
17	682
18	1364
19	2047
20	2728
21	8191
22	10922
23	13515
24	14043
25	32747
26	112347
27	131071
28	524287
29	2796202
30	3459945
31	5592404
32	7124187
33	8388607
34	8530050
35	10660010
36	11184808
37	16645111
38	17060100
39	21320020
40	33554431

[1, 2, 3, 7, 10, 20, 27, 31, 40, 127, 138, 219, 245, 276, 552, 650, 682, 1364, 2047, 2728, 8191, 10922, 13515, 14043, 32747, 112347, 131071, 524287, 2796202, 3459945, 5592404, 7124187, 8388607, 8530050, 10660010, 11184808, 16645111, 17060100, 21320020, 33554431]

cp's OEIS Frontend

A320675 Positive integers m with binary expansion (b_1, ..., b_k) (where k = A070939(m)) such that b_i = [gcd(m, i)=1] for i = 1..k (where [] is an Iverson bracket).

Table of values

List of values