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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.

A055618 a(n) = A*10^(4*n-1) + B with A = 990*(10^(4*n)-1)/9999 and B = 990000*(10^(4*n-4)-1)/9999 + 100.

Table of values

n a(n)
1 990100
2 99009900990100
3 9900990099009900990100
4 990099009900990099009900990100
5 99009900990099009900990099009900990100
6 9900990099009900990099009900990099009900990100
7 990099009900990099009900990099009900990099009900990100

List of values

[990100, 99009900990100, 9900990099009900990100, 990099009900990099009900990100, 99009900990099009900990099009900990100, 9900990099009900990099009900990099009900990100, 990099009900990099009900990099009900990099009900990100]

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

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