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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.

A203752 Vandermonde sequence using x^2 - xy + y^2 applied to (0,1,1,2,2,...,floor(n/2)).

Table of values

n a(n)
1 1
2 1
3 1
4 36
5 5184
6 112021056
7 21785966991936
8 1433615623503400157184
9 1509414758014670876688343105536
10 956401356293432867934306416285626820198400
11 15149970368698147242050701825966625432586471604224000000

List of values

[1, 1, 1, 36, 5184, 112021056, 21785966991936, 1433615623503400157184, 1509414758014670876688343105536, 956401356293432867934306416285626820198400, 15149970368698147242050701825966625432586471604224000000]

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

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