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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.

A203312 Vandermonde sequence using x^2 - xy + y^2 applied to (1,2,...,n).

Table of values

n a(n)
1 1
2 3
3 147
4 298116
5 47460365316
6 965460013501733568
7 3717096745012192786213464768
8 3763515081241454304168766426610670649344
9 1329626784930718063722475681347135527472012731205697536

List of values

[1, 3, 147, 298116, 47460365316, 965460013501733568, 3717096745012192786213464768, 3763515081241454304168766426610670649344, 1329626784930718063722475681347135527472012731205697536]

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

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