A213015 - cp's OEIS frontend

A213015 Numbers n such that the sum of prime factors of n (counted with multiplicity) is 2 times a prime.

n	a(n)
1	4
2	8
3	9
4	21
5	25
6	30
7	32
8	33
9	36
10	49
11	57
12	69
13	70
14	84
15	85
16	93
17	100
18	102
19	120
20	121
21	128
22	129
23	133
24	135
25	144
26	145
27	162
28	169
29	174
30	177
31	182
32	190
33	205
34	213
35	217
36	228
37	237
38	238
39	246
40	249
41	253
42	260
43	265
44	286
45	289
46	308
47	309
48	310
49	312
50	318
51	340
52	351
53	361
54	372
55	393
56	406

[4, 8, 9, 21, 25, 30, 32, 33, 36, 49, 57, 69, 70, 84, 85, 93, 100, 102, 120, 121, 128, 129, 133, 135, 144, 145, 162, 169, 174, 177, 182, 190, 205, 213, 217, 228, 237, 238, 246, 249, 253, 260, 265, 286, 289, 308, 309, 310, 312, 318, 340, 351, 361, 372, 393, 406]

cp's OEIS Frontend

A213015 Numbers n such that the sum of prime factors of n (counted with multiplicity) is 2 times a prime.

Table of values

List of values

n	a(n)
1	4
2	8
3	9
4	21
5	25
6	30
7	32
8	33
9	36
10	49
11	57
12	69
13	70
14	84
15	85
16	93
17	100
18	102
19	120
20	121
21	128
22	129
23	133
24	135
25	144
26	145
27	162
28	169
29	174
30	177
31	182
32	190
33	205
34	213
35	217
36	228
37	237
38	238
39	246
40	249
41	253
42	260
43	265
44	286
45	289
46	308
47	309
48	310
49	312
50	318
51	340
52	351
53	361
54	372
55	393
56	406

n	a(n)
1	4
2	8
3	9
4	21
5	25
6	30
7	32
8	33
9	36
10	49
11	57
12	69
13	70
14	84
15	85
16	93
17	100
18	102
19	120
20	121
21	128
22	129
23	133
24	135
25	144
26	145
27	162
28	169
29	174
30	177
31	182
32	190
33	205
34	213
35	217
36	228
37	237
38	238
39	246
40	249
41	253
42	260
43	265
44	286
45	289
46	308
47	309
48	310
49	312
50	318
51	340
52	351
53	361
54	372
55	393
56	406

n	a(n)
1	4
2	8
3	9
4	21
5	25
6	30
7	32
8	33
9	36
10	49
11	57
12	69
13	70
14	84
15	85
16	93
17	100
18	102
19	120
20	121
21	128
22	129
23	133
24	135
25	144
26	145
27	162
28	169
29	174
30	177
31	182
32	190
33	205
34	213
35	217
36	228
37	237
38	238
39	246
40	249
41	253
42	260
43	265
44	286
45	289
46	308
47	309
48	310
49	312
50	318
51	340
52	351
53	361
54	372
55	393
56	406