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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.

A203421 Reciprocal of Vandermonde determinant of (1,1/2,...,1/n).

Table of values

n a(n)
0 1
1 1
2 -2
3 -18
4 1152
5 720000
6 -5598720000
7 -658683809280000
8 1381360067999170560000
9 59463021447701323327733760000
10 -59463021447701323327733760000000000000
11 -1542317635347398938581016812202229760000000000000

List of values

[1, 1, -2, -18, 1152, 720000, -5598720000, -658683809280000, 1381360067999170560000, 59463021447701323327733760000, -59463021447701323327733760000000000000, -1542317635347398938581016812202229760000000000000]

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

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