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.

A225813 a(n) = (10^n)^2 + 7*(10^n) + 1.

Table of values

n a(n)
0 9
1 171
2 10701
3 1007001
4 100070001
5 10000700001
6 1000007000001
7 100000070000001
8 10000000700000001
9 1000000007000000001
10 100000000070000000001
11 10000000000700000000001
12 1000000000007000000000001
13 100000000000070000000000001
14 10000000000000700000000000001

List of values

[9, 171, 10701, 1007001, 100070001, 10000700001, 1000007000001, 100000070000001, 10000000700000001, 1000000007000000001, 100000000070000000001, 10000000000700000000001, 1000000000007000000000001, 100000000000070000000000001, 10000000000000700000000000001]

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

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