A146071 - cp's OEIS frontend

A146071 Consider A145834 as the first step of the sieving (subtracting the sum of its prime factors with repetition from the composite numbers). This sequence is the result of the subsequent application of above described sieving - thus all terms of this sequence arise as prime numbers.

n	a(n)
1	0
2	1
3	2
4	3
5	3
6	5
7	5
8	7
9	2
10	3
11	11
12	11
13	3
14	7
15	7
16	11
17	3
18	17
19	11
20	3
21	19
22	7
23	23
24	11
25	17
26	23
27	29
28	11
29	29
30	7
31	11
32	37
33	23
34	17
35	31
36	23
37	43
38	23
39	43
40	23
41	3
42	37
43	29
44	17
45	23
46	47
47	17
48	47
49	43
50	43
51	37
52	23
53	29
54	53
55	59
56	37
57	67
58	43
59	23
60	43
61	17
62	41
63	23
64	71
65	59
66	71
67	47
68	59
69	7
70	71
71	83
72	23
73	23
74	41
75	67
76	17
77	59

[0, 1, 2, 3, 3, 5, 5, 7, 2, 3, 11, 11, 3, 7, 7, 11, 3, 17, 11, 3, 19, 7, 23, 11, 17, 23, 29, 11, 29, 7, 11, 37, 23, 17, 31, 23, 43, 23, 43, 23, 3, 37, 29, 17, 23, 47, 17, 47, 43, 43, 37, 23, 29, 53, 59, 37, 67, 43, 23, 43, 17, 41, 23, 71, 59, 71, 47, 59, 7, 71, 83, 23, 23, 41, 67, 17, 59]

cp's OEIS Frontend

A146071 Consider A145834 as the first step of the sieving (subtracting the sum of its prime factors with repetition from the composite numbers). This sequence is the result of the subsequent application of above described sieving - thus all terms of this sequence arise as prime numbers.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	3
6	5
7	5
8	7
9	2
10	3
11	11
12	11
13	3
14	7
15	7
16	11
17	3
18	17
19	11
20	3
21	19
22	7
23	23
24	11
25	17
26	23
27	29
28	11
29	29
30	7
31	11
32	37
33	23
34	17
35	31
36	23
37	43
38	23
39	43
40	23
41	3
42	37
43	29
44	17
45	23
46	47
47	17
48	47
49	43
50	43
51	37
52	23
53	29
54	53
55	59
56	37
57	67
58	43
59	23
60	43
61	17
62	41
63	23
64	71
65	59
66	71
67	47
68	59
69	7
70	71
71	83
72	23
73	23
74	41
75	67
76	17
77	59

n	a(n)
1	0
2	1
3	2
4	3
5	3
6	5
7	5
8	7
9	2
10	3
11	11
12	11
13	3
14	7
15	7
16	11
17	3
18	17
19	11
20	3
21	19
22	7
23	23
24	11
25	17
26	23
27	29
28	11
29	29
30	7
31	11
32	37
33	23
34	17
35	31
36	23
37	43
38	23
39	43
40	23
41	3
42	37
43	29
44	17
45	23
46	47
47	17
48	47
49	43
50	43
51	37
52	23
53	29
54	53
55	59
56	37
57	67
58	43
59	23
60	43
61	17
62	41
63	23
64	71
65	59
66	71
67	47
68	59
69	7
70	71
71	83
72	23
73	23
74	41
75	67
76	17
77	59

n	a(n)
1	0
2	1
3	2
4	3
5	3
6	5
7	5
8	7
9	2
10	3
11	11
12	11
13	3
14	7
15	7
16	11
17	3
18	17
19	11
20	3
21	19
22	7
23	23
24	11
25	17
26	23
27	29
28	11
29	29
30	7
31	11
32	37
33	23
34	17
35	31
36	23
37	43
38	23
39	43
40	23
41	3
42	37
43	29
44	17
45	23
46	47
47	17
48	47
49	43
50	43
51	37
52	23
53	29
54	53
55	59
56	37
57	67
58	43
59	23
60	43
61	17
62	41
63	23
64	71
65	59
66	71
67	47
68	59
69	7
70	71
71	83
72	23
73	23
74	41
75	67
76	17
77	59