cp's OEIS Frontend

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.

A130448 Squares whose decimal representation contains no proper subsequence which is a positive square.

Table of values

n a(n)
1 1
2 4
3 9
4 25
5 36
6 576
7 676
8 7056
9 80656
10 665856
11 2027776
12 2802276
13 22282727076
14 77770707876
15 78807087076
16 7888885568656
17 8782782707776
18 72822772707876
19 555006880085056
20 782280288087076
21 827702888070276
22 888288787822276
23 2282820800707876
24 7880082008070276
25 80077778877070276
26 88778000807227876
27 782828878078078276
28 872727072820287876

List of values

[1, 4, 9, 25, 36, 576, 676, 7056, 80656, 665856, 2027776, 2802276, 22282727076, 77770707876, 78807087076, 7888885568656, 8782782707776, 72822772707876, 555006880085056, 782280288087076, 827702888070276, 888288787822276, 2282820800707876, 7880082008070276, 80077778877070276, 88778000807227876, 782828878078078276, 872727072820287876]

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

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