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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.

A203675 Vandermonde sequence using x^2 - xy + y^2 applied to (1,4,9,...,n^2).

Table of values

n a(n)
1 1
2 13
3 57889
4 560058939856
5 42130404012097952586256
6 65111467563626175389271488157658681344
7 4528499444374253250530486688998183592108605307719698157568

List of values

[1, 13, 57889, 560058939856, 42130404012097952586256, 65111467563626175389271488157658681344, 4528499444374253250530486688998183592108605307719698157568]

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

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