A284890 - cp's OEIS frontend

A284890 a(1)=2, and then a(n+1) = a(n) + k where prime(k) is the least prime dividing a(n).

n	a(n)
1	2
2	3
3	5
4	8
5	9
6	11
7	16
8	17
9	24
10	25
11	28
12	29
13	39
14	41
15	54
16	55
17	58
18	59
19	76
20	77
21	81
22	83
23	106
24	107
25	135
26	137
27	170
28	171
29	173
30	213
31	215
32	218
33	219
34	221
35	227
36	276
37	277
38	336
39	337
40	405
41	407
42	412
43	413
44	417
45	419
46	500
47	501
48	503
49	599
50	708
51	709
52	836
53	837
54	839
55	985
56	988
57	989

[2, 3, 5, 8, 9, 11, 16, 17, 24, 25, 28, 29, 39, 41, 54, 55, 58, 59, 76, 77, 81, 83, 106, 107, 135, 137, 170, 171, 173, 213, 215, 218, 219, 221, 227, 276, 277, 336, 337, 405, 407, 412, 413, 417, 419, 500, 501, 503, 599, 708, 709, 836, 837, 839, 985, 988, 989]

cp's OEIS Frontend

A284890 a(1)=2, and then a(n+1) = a(n) + k where prime(k) is the least prime dividing a(n).

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	8
5	9
6	11
7	16
8	17
9	24
10	25
11	28
12	29
13	39
14	41
15	54
16	55
17	58
18	59
19	76
20	77
21	81
22	83
23	106
24	107
25	135
26	137
27	170
28	171
29	173
30	213
31	215
32	218
33	219
34	221
35	227
36	276
37	277
38	336
39	337
40	405
41	407
42	412
43	413
44	417
45	419
46	500
47	501
48	503
49	599
50	708
51	709
52	836
53	837
54	839
55	985
56	988
57	989

n	a(n)
1	2
2	3
3	5
4	8
5	9
6	11
7	16
8	17
9	24
10	25
11	28
12	29
13	39
14	41
15	54
16	55
17	58
18	59
19	76
20	77
21	81
22	83
23	106
24	107
25	135
26	137
27	170
28	171
29	173
30	213
31	215
32	218
33	219
34	221
35	227
36	276
37	277
38	336
39	337
40	405
41	407
42	412
43	413
44	417
45	419
46	500
47	501
48	503
49	599
50	708
51	709
52	836
53	837
54	839
55	985
56	988
57	989

n	a(n)
1	2
2	3
3	5
4	8
5	9
6	11
7	16
8	17
9	24
10	25
11	28
12	29
13	39
14	41
15	54
16	55
17	58
18	59
19	76
20	77
21	81
22	83
23	106
24	107
25	135
26	137
27	170
28	171
29	173
30	213
31	215
32	218
33	219
34	221
35	227
36	276
37	277
38	336
39	337
40	405
41	407
42	412
43	413
44	417
45	419
46	500
47	501
48	503
49	599
50	708
51	709
52	836
53	837
54	839
55	985
56	988
57	989