cp's OEIS Frontend

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.

A187701 Number of (n+1)X(n+1) 0..2 arrays with each 2X2 subblock off diagonal and antidiagonal nonsingular and the array of 2X2 subblock determinants antisymmetric about the diagonal and antidiagonal.

Table of values

n a(n)
1 31
2 1489
3 72
4 5030
5 36
6 7410
7 474
8 176936

List of values

[31, 1489, 72, 5030, 36, 7410, 474, 176936]

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

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