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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.

A220985 The left Aurifeuillian factor of 10^(20n+10) + 1.

Table of values

n a(n)
0 3541
1 904806804901
2 99004980069800499001
3 9990004998000699800049990001
4 999900004999800006999800004999900001
5 99999000004999980000069999800000499999000001
6 9999990000004999998000000699999800000049999990000001

List of values

[3541, 904806804901, 99004980069800499001, 9990004998000699800049990001, 999900004999800006999800004999900001, 99999000004999980000069999800000499999000001, 9999990000004999998000000699999800000049999990000001]

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

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