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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.

A165443 a(n) = ( 16^(2*n+1) + 81^(2*n+1) )/97.

Table of values

n a(n)
0 1
1 5521
2 35957041
3 235845988561
4 1547368082644081
5 10152277523461827601
6 66609091687940958003121
7 437022250271846649679394641
8 2867302983958645970747063186161
9 18812374877733491600234823630721681

List of values

[1, 5521, 35957041, 235845988561, 1547368082644081, 10152277523461827601, 66609091687940958003121, 437022250271846649679394641, 2867302983958645970747063186161, 18812374877733491600234823630721681]

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

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