A283715 - cp's OEIS frontend

A283715 a(n) is the number of Carmichael numbers whose largest prime factor is prime(n).

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	2
8	1
9	0
10	1
11	2
12	2
13	2
14	0
15	0
16	0
17	0
18	6
19	3
20	1
21	9
22	2
23	0
24	3
25	9
26	7
27	3
28	1
29	16
30	20
31	42
32	19
33	12
34	15
35	3
36	60
37	54
38	57
39	2
40	8
41	2
42	277
43	20
44	170
45	75
46	259
47	775
48	57
49	11
50	110

[0, 0, 0, 0, 0, 0, 2, 1, 0, 1, 2, 2, 2, 0, 0, 0, 0, 6, 3, 1, 9, 2, 0, 3, 9, 7, 3, 1, 16, 20, 42, 19, 12, 15, 3, 60, 54, 57, 2, 8, 2, 277, 20, 170, 75, 259, 775, 57, 11, 110]

cp's OEIS Frontend

A283715 a(n) is the number of Carmichael numbers whose largest prime factor is prime(n).

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	2
8	1
9	0
10	1
11	2
12	2
13	2
14	0
15	0
16	0
17	0
18	6
19	3
20	1
21	9
22	2
23	0
24	3
25	9
26	7
27	3
28	1
29	16
30	20
31	42
32	19
33	12
34	15
35	3
36	60
37	54
38	57
39	2
40	8
41	2
42	277
43	20
44	170
45	75
46	259
47	775
48	57
49	11
50	110

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	2
8	1
9	0
10	1
11	2
12	2
13	2
14	0
15	0
16	0
17	0
18	6
19	3
20	1
21	9
22	2
23	0
24	3
25	9
26	7
27	3
28	1
29	16
30	20
31	42
32	19
33	12
34	15
35	3
36	60
37	54
38	57
39	2
40	8
41	2
42	277
43	20
44	170
45	75
46	259
47	775
48	57
49	11
50	110

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	2
8	1
9	0
10	1
11	2
12	2
13	2
14	0
15	0
16	0
17	0
18	6
19	3
20	1
21	9
22	2
23	0
24	3
25	9
26	7
27	3
28	1
29	16
30	20
31	42
32	19
33	12
34	15
35	3
36	60
37	54
38	57
39	2
40	8
41	2
42	277
43	20
44	170
45	75
46	259
47	775
48	57
49	11
50	110