A279427 - cp's OEIS frontend

A279427 Numbers k such that k^2 has an odd number of digits and the middle digit is 7.

n	a(n)
1	24
2	26
3	113
4	137
5	144
6	154
7	181
8	189
9	214
10	223
11	234
12	266
13	277
14	286
15	311
16	1033
17	1038
18	1043
19	1057
20	1062
21	1071
22	1076
23	1085
24	1099
25	1108
26	1117
27	1126
28	1139
29	1148
30	1152
31	1161
32	1165
33	1178
34	1182
35	1199
36	1203
37	1228
38	1232
39	1236
40	1240
41	1244
42	1248
43	1252
44	1256
45	1260
46	1264

[24, 26, 113, 137, 144, 154, 181, 189, 214, 223, 234, 266, 277, 286, 311, 1033, 1038, 1043, 1057, 1062, 1071, 1076, 1085, 1099, 1108, 1117, 1126, 1139, 1148, 1152, 1161, 1165, 1178, 1182, 1199, 1203, 1228, 1232, 1236, 1240, 1244, 1248, 1252, 1256, 1260, 1264]

cp's OEIS Frontend

A279427 Numbers k such that k^2 has an odd number of digits and the middle digit is 7.

Table of values

List of values