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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.

A203697 Vandermonde sequence using x^2 + xy + y^2 applied to the Fibonacci numbers (1,2,3,5,...F(n+1)).

Table of values

n a(n)
1 1
2 7
3 1729
4 102427689
5 7859247487506324
6 5420939118751361437801775388
7 212771631278201852610030565508935087592924796
8 3245346956445033097411208139940145810977419605290236367412235927744

List of values

[1, 7, 1729, 102427689, 7859247487506324, 5420939118751361437801775388, 212771631278201852610030565508935087592924796, 3245346956445033097411208139940145810977419605290236367412235927744]

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

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