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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.

A203012 Vandermonde sequence using x^2 + xy + y^2 applied to (1,2,...,n).

Table of values

n a(n)
1 1
2 7
3 1729
4 37616124
5 135933424914924
6 132432199651531695045312
7 51437933151214684812682944045953088
8 11056394929890243558409721156996503083526683082752
9 1743892714865607005898689849291524734866677095031979100765833773056

List of values

[1, 7, 1729, 37616124, 135933424914924, 132432199651531695045312, 51437933151214684812682944045953088, 11056394929890243558409721156996503083526683082752, 1743892714865607005898689849291524734866677095031979100765833773056]

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

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