A361438 - cp's OEIS frontend

A361438 Triangle T(n,k), n >= 1, 1 <= k <= A046801(n), read by rows, where T(n,k) is k-th smallest divisor of 2^n-1.

n	a(n)
1	1
2	1
3	3
4	1
5	7
6	1
7	3
8	5
9	15
10	1
11	31
12	1
13	3
14	7
15	9
16	21
17	63
18	1
19	127
20	1
21	3
22	5
23	15
24	17
25	51
26	85
27	255
28	1
29	7
30	73
31	511
32	1
33	3
34	11
35	31
36	33
37	93
38	341
39	1023
40	1
41	23
42	89
43	2047
44	1
45	3
46	5
47	7
48	9
49	13
50	15
51	21
52	35
53	39
54	45
55	63
56	65
57	91
58	105
59	117
60	195
61	273
62	315
63	455
64	585
65	819
66	1365
67	4095
68	1
69	8191
70	1
71	3
72	43
73	127
74	129
75	381
76	5461
77	16383

[1, 1, 3, 1, 7, 1, 3, 5, 15, 1, 31, 1, 3, 7, 9, 21, 63, 1, 127, 1, 3, 5, 15, 17, 51, 85, 255, 1, 7, 73, 511, 1, 3, 11, 31, 33, 93, 341, 1023, 1, 23, 89, 2047, 1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 1, 8191, 1, 3, 43, 127, 129, 381, 5461, 16383]

cp's OEIS Frontend

A361438 Triangle T(n,k), n >= 1, 1 <= k <= A046801(n), read by rows, where T(n,k) is k-th smallest divisor of 2^n-1.

Table of values

List of values