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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A220082 Numbers k such that 10*k-1 is a square.

Table of values

n a(n)
1 1
2 5
3 17
4 29
5 53
6 73
7 109
8 137
9 185
10 221
11 281
12 325
13 397
14 449
15 533
16 593
17 689
18 757
19 865
20 941
21 1061
22 1145
23 1277
24 1369
25 1513
26 1613
27 1769
28 1877
29 2045
30 2161
31 2341
32 2465
33 2657
34 2789
35 2993
36 3133
37 3349
38 3497
39 3725
40 3881
41 4121
42 4285
43 4537
44 4709
45 4973
46 5153
47 5429
48 5617
49 5905

List of values

[1, 5, 17, 29, 53, 73, 109, 137, 185, 221, 281, 325, 397, 449, 533, 593, 689, 757, 865, 941, 1061, 1145, 1277, 1369, 1513, 1613, 1769, 1877, 2045, 2161, 2341, 2465, 2657, 2789, 2993, 3133, 3349, 3497, 3725, 3881, 4121, 4285, 4537, 4709, 4973, 5153, 5429, 5617, 5905]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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