A359666 - cp's OEIS frontend

A359666 Integers k such that sigma(k) <= sigma(k+1) <= sigma(k+2) <= sigma(k+3), where sigma is the sum of divisors.

n	a(n)
1	1
2	13
3	61
4	73
5	133
6	145
7	193
8	205
9	253
10	397
11	457
12	481
13	493
14	553
15	565
16	613
17	625
18	661
19	673
20	733
21	757
22	793
23	817
24	853
25	913
26	973
27	997
28	1033
29	1093
30	1213
31	1237
32	1285
33	1321
34	1333
35	1453
36	1513
37	1537
38	1633
39	1645
40	1657
41	1681
42	1813
43	1825
44	1873
45	1933
46	2077
47	2113
48	2173
49	2233
50	2245
51	2293
52	2413
53	2497

[1, 13, 61, 73, 133, 145, 193, 205, 253, 397, 457, 481, 493, 553, 565, 613, 625, 661, 673, 733, 757, 793, 817, 853, 913, 973, 997, 1033, 1093, 1213, 1237, 1285, 1321, 1333, 1453, 1513, 1537, 1633, 1645, 1657, 1681, 1813, 1825, 1873, 1933, 2077, 2113, 2173, 2233, 2245, 2293, 2413, 2497]

cp's OEIS Frontend

A359666 Integers k such that sigma(k) <= sigma(k+1) <= sigma(k+2) <= sigma(k+3), where sigma is the sum of divisors.

Table of values

List of values