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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.

A218720 a(n) is smallest number such that a(n)^2 + 1 is divisible by 101^n.

Table of values

n a(n)
0 0
1 10
2 515
3 296344
4 35764191
5 1108900220
6 316411915250
7 47023298541694
8 3156215819652023
9 310872228812491206
10 28124944860980892220
11 3783840171259076226254
12 208193145695151069244665
13 19364218657938636320485082
14 663491749602035014400202724

List of values

[0, 10, 515, 296344, 35764191, 1108900220, 316411915250, 47023298541694, 3156215819652023, 310872228812491206, 28124944860980892220, 3783840171259076226254, 208193145695151069244665, 19364218657938636320485082, 663491749602035014400202724]

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

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