A239634 - cp's OEIS frontend

A239634 Initial digits of semiprimes in decimal representation.

n	a(n)
1	4
2	6
3	9
4	1
5	1
6	1
7	2
8	2
9	2
10	2
11	3
12	3
13	3
14	3
15	3
16	4
17	4
18	5
19	5
20	5
21	5
22	6
23	6
24	6
25	7
26	7
27	8
28	8
29	8
30	8
31	9
32	9
33	9
34	9
35	1
36	1
37	1
38	1
39	1
40	1
41	1
42	1
43	1
44	1
45	1
46	1
47	1
48	1
49	1
50	1
51	1
52	1
53	1
54	1
55	1
56	1
57	1
58	1
59	1
60	1
61	1
62	1
63	2
64	2
65	2
66	2
67	2
68	2
69	2
70	2
71	2
72	2
73	2
74	2
75	2
76	2
77	2
78	2
79	2
80	2
81	2
82	2
83	2
84	2
85	2
86	2

[4, 6, 9, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 5, 5, 5, 5, 6, 6, 6, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]

cp's OEIS Frontend

A239634 Initial digits of semiprimes in decimal representation.

Table of values

List of values

n	a(n)
1	4
2	6
3	9
4	1
5	1
6	1
7	2
8	2
9	2
10	2
11	3
12	3
13	3
14	3
15	3
16	4
17	4
18	5
19	5
20	5
21	5
22	6
23	6
24	6
25	7
26	7
27	8
28	8
29	8
30	8
31	9
32	9
33	9
34	9
35	1
36	1
37	1
38	1
39	1
40	1
41	1
42	1
43	1
44	1
45	1
46	1
47	1
48	1
49	1
50	1
51	1
52	1
53	1
54	1
55	1
56	1
57	1
58	1
59	1
60	1
61	1
62	1
63	2
64	2
65	2
66	2
67	2
68	2
69	2
70	2
71	2
72	2
73	2
74	2
75	2
76	2
77	2
78	2
79	2
80	2
81	2
82	2
83	2
84	2
85	2
86	2

n	a(n)
1	4
2	6
3	9
4	1
5	1
6	1
7	2
8	2
9	2
10	2
11	3
12	3
13	3
14	3
15	3
16	4
17	4
18	5
19	5
20	5
21	5
22	6
23	6
24	6
25	7
26	7
27	8
28	8
29	8
30	8
31	9
32	9
33	9
34	9
35	1
36	1
37	1
38	1
39	1
40	1
41	1
42	1
43	1
44	1
45	1
46	1
47	1
48	1
49	1
50	1
51	1
52	1
53	1
54	1
55	1
56	1
57	1
58	1
59	1
60	1
61	1
62	1
63	2
64	2
65	2
66	2
67	2
68	2
69	2
70	2
71	2
72	2
73	2
74	2
75	2
76	2
77	2
78	2
79	2
80	2
81	2
82	2
83	2
84	2
85	2
86	2

n	a(n)
1	4
2	6
3	9
4	1
5	1
6	1
7	2
8	2
9	2
10	2
11	3
12	3
13	3
14	3
15	3
16	4
17	4
18	5
19	5
20	5
21	5
22	6
23	6
24	6
25	7
26	7
27	8
28	8
29	8
30	8
31	9
32	9
33	9
34	9
35	1
36	1
37	1
38	1
39	1
40	1
41	1
42	1
43	1
44	1
45	1
46	1
47	1
48	1
49	1
50	1
51	1
52	1
53	1
54	1
55	1
56	1
57	1
58	1
59	1
60	1
61	1
62	1
63	2
64	2
65	2
66	2
67	2
68	2
69	2
70	2
71	2
72	2
73	2
74	2
75	2
76	2
77	2
78	2
79	2
80	2
81	2
82	2
83	2
84	2
85	2
86	2