A349546 - cp's OEIS frontend

A349546 Composite numbers k such that k+1 is divisible by (k+1 mod A001414(k)) and k-1 is divisible by (k-1 mod A001414(k)).

n	a(n)
1	4
2	8
3	20
4	32
5	50
6	55
7	64
8	77
9	80
10	98
11	110
12	115
13	125
14	128
15	152
16	170
17	216
18	242
19	243
20	256
21	275
22	290
23	329
24	338
25	341
26	343
27	364
28	371
29	416
30	506
31	511
32	512
33	544
34	551
35	578
36	583
37	611
38	638
39	663
40	722
41	729
42	731
43	741
44	851
45	870
46	920
47	987
48	1024
49	1025
50	1054
51	1058
52	1079
53	1144
54	1219
55	1243
56	1298
57	1325
58	1331
59	1421

[4, 8, 20, 32, 50, 55, 64, 77, 80, 98, 110, 115, 125, 128, 152, 170, 216, 242, 243, 256, 275, 290, 329, 338, 341, 343, 364, 371, 416, 506, 511, 512, 544, 551, 578, 583, 611, 638, 663, 722, 729, 731, 741, 851, 870, 920, 987, 1024, 1025, 1054, 1058, 1079, 1144, 1219, 1243, 1298, 1325, 1331, 1421]

cp's OEIS Frontend

A349546 Composite numbers k such that k+1 is divisible by (k+1 mod A001414(k)) and k-1 is divisible by (k-1 mod A001414(k)).

Table of values

List of values