A375514 - cp's OEIS frontend

A375514 Numbers k such that floor((k^3 - k)/4) is squarefree.

n	a(n)
1	2
2	3
3	4
4	5
5	10
6	11
7	12
8	13
9	14
10	18
11	20
12	21
13	26
14	29
15	30
16	34
17	40
18	42
19	43
20	46
21	50
22	52
23	56
24	59
25	60
26	61
27	62
28	66
29	67
30	68
31	69
32	74
33	77
34	78
35	82
36	83
37	84
38	85
39	88
40	90
41	92
42	93
43	94
44	98
45	104
46	106
47	110
48	114
49	115
50	122
51	123
52	126
53	130
54	131
55	132
56	133
57	138
58	139
59	140
60	141
61	142
62	146

[2, 3, 4, 5, 10, 11, 12, 13, 14, 18, 20, 21, 26, 29, 30, 34, 40, 42, 43, 46, 50, 52, 56, 59, 60, 61, 62, 66, 67, 68, 69, 74, 77, 78, 82, 83, 84, 85, 88, 90, 92, 93, 94, 98, 104, 106, 110, 114, 115, 122, 123, 126, 130, 131, 132, 133, 138, 139, 140, 141, 142, 146]

cp's OEIS Frontend

A375514 Numbers k such that floor((k^3 - k)/4) is squarefree.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	5
5	10
6	11
7	12
8	13
9	14
10	18
11	20
12	21
13	26
14	29
15	30
16	34
17	40
18	42
19	43
20	46
21	50
22	52
23	56
24	59
25	60
26	61
27	62
28	66
29	67
30	68
31	69
32	74
33	77
34	78
35	82
36	83
37	84
38	85
39	88
40	90
41	92
42	93
43	94
44	98
45	104
46	106
47	110
48	114
49	115
50	122
51	123
52	126
53	130
54	131
55	132
56	133
57	138
58	139
59	140
60	141
61	142
62	146

n	a(n)
1	2
2	3
3	4
4	5
5	10
6	11
7	12
8	13
9	14
10	18
11	20
12	21
13	26
14	29
15	30
16	34
17	40
18	42
19	43
20	46
21	50
22	52
23	56
24	59
25	60
26	61
27	62
28	66
29	67
30	68
31	69
32	74
33	77
34	78
35	82
36	83
37	84
38	85
39	88
40	90
41	92
42	93
43	94
44	98
45	104
46	106
47	110
48	114
49	115
50	122
51	123
52	126
53	130
54	131
55	132
56	133
57	138
58	139
59	140
60	141
61	142
62	146

n	a(n)
1	2
2	3
3	4
4	5
5	10
6	11
7	12
8	13
9	14
10	18
11	20
12	21
13	26
14	29
15	30
16	34
17	40
18	42
19	43
20	46
21	50
22	52
23	56
24	59
25	60
26	61
27	62
28	66
29	67
30	68
31	69
32	74
33	77
34	78
35	82
36	83
37	84
38	85
39	88
40	90
41	92
42	93
43	94
44	98
45	104
46	106
47	110
48	114
49	115
50	122
51	123
52	126
53	130
54	131
55	132
56	133
57	138
58	139
59	140
60	141
61	142
62	146