A280971 - cp's OEIS frontend

A280971 Composite numbers having the same bits as their prime factors (with multiplicity), including zero bits.

n	a(n)
1	159
2	287
3	303
4	319
5	591
6	623
7	679
8	687
9	699
10	763
11	1135
12	1167
13	1203
14	1243
15	1247
16	1271
17	1351
18	1371
19	1391
20	1631
21	2167
22	2173
23	2231
24	2285
25	2319
26	2359
27	2463
28	2471
29	2495
30	2519
31	2743
32	2779
33	2787
34	2809
35	2863
36	2931
37	2933
38	2991
39	3029
40	3039
41	3503
42	4223
43	4279
44	4287
45	4319
46	4343
47	4411
48	4439
49	4479
50	4487

[159, 287, 303, 319, 591, 623, 679, 687, 699, 763, 1135, 1167, 1203, 1243, 1247, 1271, 1351, 1371, 1391, 1631, 2167, 2173, 2231, 2285, 2319, 2359, 2463, 2471, 2495, 2519, 2743, 2779, 2787, 2809, 2863, 2931, 2933, 2991, 3029, 3039, 3503, 4223, 4279, 4287, 4319, 4343, 4411, 4439, 4479, 4487]

cp's OEIS Frontend

A280971 Composite numbers having the same bits as their prime factors (with multiplicity), including zero bits.

Table of values

List of values