A050675 - cp's OEIS frontend

A050675 Numbers n such that concatenation of numbers from 1 to n is nonsquarefree.

n	a(n)
1	2
2	6
3	8
4	9
5	12
6	16
7	17
8	18
9	20
10	24
11	25
12	26
13	27
14	28
15	32
16	35
17	36
18	40
19	44
20	45
21	48
22	50
23	52
24	53
25	54
26	56
27	60
28	62
29	63
30	64
31	68
32	71
33	72
34	75
35	76
36	80
37	81
38	84
39	85
40	88
41	89
42	90
43	92
44	96
45	98
46	99
47	100
48	104
49	107
50	108
51	112
52	116
53	117

[2, 6, 8, 9, 12, 16, 17, 18, 20, 24, 25, 26, 27, 28, 32, 35, 36, 40, 44, 45, 48, 50, 52, 53, 54, 56, 60, 62, 63, 64, 68, 71, 72, 75, 76, 80, 81, 84, 85, 88, 89, 90, 92, 96, 98, 99, 100, 104, 107, 108, 112, 116, 117]

cp's OEIS Frontend

A050675 Numbers n such that concatenation of numbers from 1 to n is nonsquarefree.

Table of values

List of values

n	a(n)
1	2
2	6
3	8
4	9
5	12
6	16
7	17
8	18
9	20
10	24
11	25
12	26
13	27
14	28
15	32
16	35
17	36
18	40
19	44
20	45
21	48
22	50
23	52
24	53
25	54
26	56
27	60
28	62
29	63
30	64
31	68
32	71
33	72
34	75
35	76
36	80
37	81
38	84
39	85
40	88
41	89
42	90
43	92
44	96
45	98
46	99
47	100
48	104
49	107
50	108
51	112
52	116
53	117

n	a(n)
1	2
2	6
3	8
4	9
5	12
6	16
7	17
8	18
9	20
10	24
11	25
12	26
13	27
14	28
15	32
16	35
17	36
18	40
19	44
20	45
21	48
22	50
23	52
24	53
25	54
26	56
27	60
28	62
29	63
30	64
31	68
32	71
33	72
34	75
35	76
36	80
37	81
38	84
39	85
40	88
41	89
42	90
43	92
44	96
45	98
46	99
47	100
48	104
49	107
50	108
51	112
52	116
53	117

n	a(n)
1	2
2	6
3	8
4	9
5	12
6	16
7	17
8	18
9	20
10	24
11	25
12	26
13	27
14	28
15	32
16	35
17	36
18	40
19	44
20	45
21	48
22	50
23	52
24	53
25	54
26	56
27	60
28	62
29	63
30	64
31	68
32	71
33	72
34	75
35	76
36	80
37	81
38	84
39	85
40	88
41	89
42	90
43	92
44	96
45	98
46	99
47	100
48	104
49	107
50	108
51	112
52	116
53	117