A224955 - cp's OEIS frontend

A224955 Numbers that are not squares, but can become squares by prepending or appending one additional digit.

n	a(n)
1	2
2	3
3	5
4	6
5	8
6	10
7	12
8	14
9	19
10	21
11	22
12	24
13	28
14	29
15	32
16	40
17	41
18	44
19	48
20	52
21	56
22	57
23	61
24	62
25	67
26	69
27	72
28	76
29	78
30	84
31	89
32	90
33	96
34	102
35	108
36	115
37	116
38	122
39	129
40	136
41	152
42	156
43	160
44	168
45	176
46	184
47	193
48	202
49	209
50	211
51	216
52	220
53	230
54	240
55	241
56	249
57	250
58	260
59	270
60	280

[2, 3, 5, 6, 8, 10, 12, 14, 19, 21, 22, 24, 28, 29, 32, 40, 41, 44, 48, 52, 56, 57, 61, 62, 67, 69, 72, 76, 78, 84, 89, 90, 96, 102, 108, 115, 116, 122, 129, 136, 152, 156, 160, 168, 176, 184, 193, 202, 209, 211, 216, 220, 230, 240, 241, 249, 250, 260, 270, 280]

cp's OEIS Frontend

A224955 Numbers that are not squares, but can become squares by prepending or appending one additional digit.

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	6
5	8
6	10
7	12
8	14
9	19
10	21
11	22
12	24
13	28
14	29
15	32
16	40
17	41
18	44
19	48
20	52
21	56
22	57
23	61
24	62
25	67
26	69
27	72
28	76
29	78
30	84
31	89
32	90
33	96
34	102
35	108
36	115
37	116
38	122
39	129
40	136
41	152
42	156
43	160
44	168
45	176
46	184
47	193
48	202
49	209
50	211
51	216
52	220
53	230
54	240
55	241
56	249
57	250
58	260
59	270
60	280

n	a(n)
1	2
2	3
3	5
4	6
5	8
6	10
7	12
8	14
9	19
10	21
11	22
12	24
13	28
14	29
15	32
16	40
17	41
18	44
19	48
20	52
21	56
22	57
23	61
24	62
25	67
26	69
27	72
28	76
29	78
30	84
31	89
32	90
33	96
34	102
35	108
36	115
37	116
38	122
39	129
40	136
41	152
42	156
43	160
44	168
45	176
46	184
47	193
48	202
49	209
50	211
51	216
52	220
53	230
54	240
55	241
56	249
57	250
58	260
59	270
60	280

n	a(n)
1	2
2	3
3	5
4	6
5	8
6	10
7	12
8	14
9	19
10	21
11	22
12	24
13	28
14	29
15	32
16	40
17	41
18	44
19	48
20	52
21	56
22	57
23	61
24	62
25	67
26	69
27	72
28	76
29	78
30	84
31	89
32	90
33	96
34	102
35	108
36	115
37	116
38	122
39	129
40	136
41	152
42	156
43	160
44	168
45	176
46	184
47	193
48	202
49	209
50	211
51	216
52	220
53	230
54	240
55	241
56	249
57	250
58	260
59	270
60	280