A054984 - cp's OEIS frontend

A054984 Composite numbers k such that sigma(k + 6!) = sigma(k + 720) = sigma(k) + 720.

n	a(n)
1	427
2	553
3	595
4	623
5	737
6	871
7	913
8	923
9	1199
10	1207
11	1241
12	1507
13	1582
14	1817
15	1848
16	2193
17	2226
18	2337
19	2398
20	2407
21	2553
22	2561
23	2728
24	2758
25	2929
26	3016
27	3115
28	3248
29	3346
30	3502
31	3503
32	3598
33	3705
34	3762
35	4171
36	4293
37	4343
38	4462
39	4587
40	4633
41	4841
42	4867
43	4984

[427, 553, 595, 623, 737, 871, 913, 923, 1199, 1207, 1241, 1507, 1582, 1817, 1848, 2193, 2226, 2337, 2398, 2407, 2553, 2561, 2728, 2758, 2929, 3016, 3115, 3248, 3346, 3502, 3503, 3598, 3705, 3762, 4171, 4293, 4343, 4462, 4587, 4633, 4841, 4867, 4984]

cp's OEIS Frontend

A054984 Composite numbers k such that sigma(k + 6!) = sigma(k + 720) = sigma(k) + 720.

Table of values

List of values