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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.

A203681 Vandermonde sequence using x^2 - xy + y^2 applied to (1,2,4,...,2^(n-1)).

Table of values

n a(n)
1 1
2 3
3 468
4 66583296
5 146110606331609088
6 81505592725670294610465062387712
7 187767859619216944607590791201095479470807659625578496
8 28804175949984280950704030973074409134657825104658343024583926573114205963127095296

List of values

[1, 3, 468, 66583296, 146110606331609088, 81505592725670294610465062387712, 187767859619216944607590791201095479470807659625578496, 28804175949984280950704030973074409134657825104658343024583926573114205963127095296]

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

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