A221743 - cp's OEIS frontend

A221743 Numbers k such that (6k+1)(12k+1)(18*k+1) is a Carmichael number which is the product of four prime numbers.

n	a(n)
1	5
2	11
3	15
4	61
5	85
6	115
7	455
8	661
9	700
10	805
11	920
12	1225
13	1326
14	1910
15	2961
16	4935
17	5425
18	6565
19	8175
20	10885
21	11375
22	12155
23	13230
24	18315
25	37800
26	39325
27	45325
28	59726
29	69440
30	99645
31	113120
32	121365
33	129850
34	144685
35	211945
36	353465
37	378940
38	389896
39	392625

[5, 11, 15, 61, 85, 115, 455, 661, 700, 805, 920, 1225, 1326, 1910, 2961, 4935, 5425, 6565, 8175, 10885, 11375, 12155, 13230, 18315, 37800, 39325, 45325, 59726, 69440, 99645, 113120, 121365, 129850, 144685, 211945, 353465, 378940, 389896, 392625]

cp's OEIS Frontend

A221743 Numbers k such that (6k+1)(12k+1)(18*k+1) is a Carmichael number which is the product of four prime numbers.

Table of values

List of values

cp's OEIS Frontend

A221743 Numbers k such that (6*k+1)*(12*k+1)*(18*k+1) is a Carmichael number which is the product of four prime numbers.

Table of values

List of values

A221743 Numbers k such that (6k+1)(12k+1)(18*k+1) is a Carmichael number which is the product of four prime numbers.