A316941 - cp's OEIS frontend

A316941 The natural numbers sequence where every composite is replaced by a prime, according to the rule explained in the Comments section (a(n) = -1 if no such prime is reached).

n	a(n)
1	1
2	2
3	3
4	211
5	5
6	23
7	7
8	2692213
9	311
10	773
11	11
12	3251
13	13
14	313
15	1129
16	3313788967
17	17
18	29
19	19
20	724553
21	37
22	211
23	23
24	2692213
25	773
26	3251
27	313
28	3313788967
29	29
30	3181
31	31
32	210527
33	311
34	3581
35	1129
36	7529
37	37
38	373
39	313
40	232357
41	41
42	19181
43	43
44	2111
45	3119014487
46	223
47	47
48	310345345771837
49	31079
50	3197071252784831

[1, 2, 3, 211, 5, 23, 7, 2692213, 311, 773, 11, 3251, 13, 313, 1129, 3313788967, 17, 29, 19, 724553, 37, 211, 23, 2692213, 773, 3251, 313, 3313788967, 29, 3181, 31, 210527, 311, 3581, 1129, 7529, 37, 373, 313, 232357, 41, 19181, 43, 2111, 3119014487, 223, 47, 310345345771837, 31079, 3197071252784831]

cp's OEIS Frontend

A316941 The natural numbers sequence where every composite is replaced by a prime, according to the rule explained in the Comments section (a(n) = -1 if no such prime is reached).

Table of values

List of values