A215081 - cp's OEIS frontend

A215081 Smallest number k such that the difference between the greatest prime divisor and the smallest prime divisor of k equals n, or 0 if there is no such k.

n	a(n)
0	2
1	6
2	15
3	10
4	21
5	14
6	55
7	0
8	33
9	22
10	39
11	26
12	85
13	0
14	51
15	34
16	57
17	38
18	115
19	0
20	69
21	46
22	203
23	0
24	145
25	0
26	87
27	58
28	93
29	62
30	259
31	0
32	185
33	0
34	111
35	74
36	205
37	0
38	123
39	82
40	129
41	86
42	235
43	0
44	141
45	94
46	371
47	0
48	265
49	0
50	159
51	106
52	413
53	0
54	295
55	0
56	177
57	118
58	183
59	122
60	469
61	0
62	335
63	0

[2, 6, 15, 10, 21, 14, 55, 0, 33, 22, 39, 26, 85, 0, 51, 34, 57, 38, 115, 0, 69, 46, 203, 0, 145, 0, 87, 58, 93, 62, 259, 0, 185, 0, 111, 74, 205, 0, 123, 82, 129, 86, 235, 0, 141, 94, 371, 0, 265, 0, 159, 106, 413, 0, 295, 0, 177, 118, 183, 122, 469, 0, 335, 0]

cp's OEIS Frontend

A215081 Smallest number k such that the difference between the greatest prime divisor and the smallest prime divisor of k equals n, or 0 if there is no such k.

Table of values

List of values

n	a(n)
0	2
1	6
2	15
3	10
4	21
5	14
6	55
7	0
8	33
9	22
10	39
11	26
12	85
13	0
14	51
15	34
16	57
17	38
18	115
19	0
20	69
21	46
22	203
23	0
24	145
25	0
26	87
27	58
28	93
29	62
30	259
31	0
32	185
33	0
34	111
35	74
36	205
37	0
38	123
39	82
40	129
41	86
42	235
43	0
44	141
45	94
46	371
47	0
48	265
49	0
50	159
51	106
52	413
53	0
54	295
55	0
56	177
57	118
58	183
59	122
60	469
61	0
62	335
63	0

n	a(n)
0	2
1	6
2	15
3	10
4	21
5	14
6	55
7	0
8	33
9	22
10	39
11	26
12	85
13	0
14	51
15	34
16	57
17	38
18	115
19	0
20	69
21	46
22	203
23	0
24	145
25	0
26	87
27	58
28	93
29	62
30	259
31	0
32	185
33	0
34	111
35	74
36	205
37	0
38	123
39	82
40	129
41	86
42	235
43	0
44	141
45	94
46	371
47	0
48	265
49	0
50	159
51	106
52	413
53	0
54	295
55	0
56	177
57	118
58	183
59	122
60	469
61	0
62	335
63	0

n	a(n)
0	2
1	6
2	15
3	10
4	21
5	14
6	55
7	0
8	33
9	22
10	39
11	26
12	85
13	0
14	51
15	34
16	57
17	38
18	115
19	0
20	69
21	46
22	203
23	0
24	145
25	0
26	87
27	58
28	93
29	62
30	259
31	0
32	185
33	0
34	111
35	74
36	205
37	0
38	123
39	82
40	129
41	86
42	235
43	0
44	141
45	94
46	371
47	0
48	265
49	0
50	159
51	106
52	413
53	0
54	295
55	0
56	177
57	118
58	183
59	122
60	469
61	0
62	335
63	0