A091155 - cp's OEIS frontend

A091155 Numbers m such that m - 2^k is squarefree for all 1 <= 2^k < m.

n	a(n)
1	2
2	3
3	4
4	7
5	15
6	23
7	39
8	63
9	75
10	87
11	111
12	135
13	147
14	159
15	195
16	219
17	231
18	255
19	267
20	315
21	387
22	399
23	411
24	423
25	435
26	447
27	459
28	495
29	519
30	567
31	615
32	663
33	675
34	699
35	711
36	735
37	747
38	759
39	771
40	819
41	867
42	915
43	999
44	1011
45	1023
46	1035
47	1047
48	1071
49	1095
50	1119
51	1155
52	1167
53	1263

[2, 3, 4, 7, 15, 23, 39, 63, 75, 87, 111, 135, 147, 159, 195, 219, 231, 255, 267, 315, 387, 399, 411, 423, 435, 447, 459, 495, 519, 567, 615, 663, 675, 699, 711, 735, 747, 759, 771, 819, 867, 915, 999, 1011, 1023, 1035, 1047, 1071, 1095, 1119, 1155, 1167, 1263]

cp's OEIS Frontend

A091155 Numbers m such that m - 2^k is squarefree for all 1 <= 2^k < m.

Table of values

List of values