A164557 - cp's OEIS frontend

A164557 Numbers k such that s(k) = s(k+1), where s(k) is the sum of divisors d of k such that k/d is odd (A002131).

n	a(n)
1	3
2	6
3	7
4	10
5	22
6	31
7	46
8	58
9	69
10	82
11	106
12	127
13	140
14	154
15	160
16	166
17	178
18	226
19	262
20	286
21	346
22	358
23	382
24	466
25	478
26	502
27	562
28	586
29	718
30	748
31	781
32	838
33	862
34	886
35	982
36	1001
37	1018
38	1066
39	1186
40	1282
41	1299
42	1306
43	1318
44	1366
45	1438
46	1486
47	1522
48	1614
49	1618
50	1672
51	1704
52	1822

[3, 6, 7, 10, 22, 31, 46, 58, 69, 82, 106, 127, 140, 154, 160, 166, 178, 226, 262, 286, 346, 358, 382, 466, 478, 502, 562, 586, 718, 748, 781, 838, 862, 886, 982, 1001, 1018, 1066, 1186, 1282, 1299, 1306, 1318, 1366, 1438, 1486, 1522, 1614, 1618, 1672, 1704, 1822]

cp's OEIS Frontend

A164557 Numbers k such that s(k) = s(k+1), where s(k) is the sum of divisors d of k such that k/d is odd (A002131).

Table of values

List of values