A279420 - cp's OEIS frontend

A279420 Numbers k such that k^2 has an odd number of digits and the middle digit is 0.

n	a(n)
1	10
2	20
3	30
4	100
5	105
6	138
7	145
8	155
9	179
10	195
11	200
12	205
13	217
14	226
15	241
16	243
17	245
18	247
19	249
20	251
21	253
22	255
23	257
24	259
25	274
26	283
27	295
28	300
29	305
30	1000
31	1005
32	1010
33	1015
34	1020
35	1025
36	1030
37	1049
38	1054
39	1068
40	1082
41	1091
42	1100
43	1114
44	1127
45	1136
46	1149
47	1158
48	1162
49	1175

[10, 20, 30, 100, 105, 138, 145, 155, 179, 195, 200, 205, 217, 226, 241, 243, 245, 247, 249, 251, 253, 255, 257, 259, 274, 283, 295, 300, 305, 1000, 1005, 1010, 1015, 1020, 1025, 1030, 1049, 1054, 1068, 1082, 1091, 1100, 1114, 1127, 1136, 1149, 1158, 1162, 1175]

cp's OEIS Frontend

A279420 Numbers k such that k^2 has an odd number of digits and the middle digit is 0.

Table of values

List of values