A250051 - cp's OEIS frontend

A250051 Numbers n such that m = floor(n/5) is not coprime to n and, if nonzero, m is also a term of the sequence.

n	a(n)
1	2
2	3
3	4
4	10
5	12
6	14
7	15
8	18
9	20
10	22
11	24
12	50
13	52
14	54
15	60
16	62
17	63
18	64
19	70
20	72
21	74
22	75
23	78
24	90
25	92
26	93
27	94
28	100
29	102
30	104
31	110
32	112
33	114
34	120
35	122
36	123
37	124
38	250
39	252
40	254
41	260
42	262
43	264
44	270
45	272
46	273
47	274
48	300
49	302
50	303
51	304
52	310
53	312
54	314
55	315
56	318

[2, 3, 4, 10, 12, 14, 15, 18, 20, 22, 24, 50, 52, 54, 60, 62, 63, 64, 70, 72, 74, 75, 78, 90, 92, 93, 94, 100, 102, 104, 110, 112, 114, 120, 122, 123, 124, 250, 252, 254, 260, 262, 264, 270, 272, 273, 274, 300, 302, 303, 304, 310, 312, 314, 315, 318]

cp's OEIS Frontend

A250051 Numbers n such that m = floor(n/5) is not coprime to n and, if nonzero, m is also a term of the sequence.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	10
5	12
6	14
7	15
8	18
9	20
10	22
11	24
12	50
13	52
14	54
15	60
16	62
17	63
18	64
19	70
20	72
21	74
22	75
23	78
24	90
25	92
26	93
27	94
28	100
29	102
30	104
31	110
32	112
33	114
34	120
35	122
36	123
37	124
38	250
39	252
40	254
41	260
42	262
43	264
44	270
45	272
46	273
47	274
48	300
49	302
50	303
51	304
52	310
53	312
54	314
55	315
56	318

n	a(n)
1	2
2	3
3	4
4	10
5	12
6	14
7	15
8	18
9	20
10	22
11	24
12	50
13	52
14	54
15	60
16	62
17	63
18	64
19	70
20	72
21	74
22	75
23	78
24	90
25	92
26	93
27	94
28	100
29	102
30	104
31	110
32	112
33	114
34	120
35	122
36	123
37	124
38	250
39	252
40	254
41	260
42	262
43	264
44	270
45	272
46	273
47	274
48	300
49	302
50	303
51	304
52	310
53	312
54	314
55	315
56	318

n	a(n)
1	2
2	3
3	4
4	10
5	12
6	14
7	15
8	18
9	20
10	22
11	24
12	50
13	52
14	54
15	60
16	62
17	63
18	64
19	70
20	72
21	74
22	75
23	78
24	90
25	92
26	93
27	94
28	100
29	102
30	104
31	110
32	112
33	114
34	120
35	122
36	123
37	124
38	250
39	252
40	254
41	260
42	262
43	264
44	270
45	272
46	273
47	274
48	300
49	302
50	303
51	304
52	310
53	312
54	314
55	315
56	318