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.

A086243 Number of invertible (-1,0,1) n X n matrices having (Tij=-Tji; i such that all T^k (k= 1..12) are also (-1,0,1) invertible matrices having (Tij=-Tji; i

Table of values

n a(n)
1 2
2 14
3 68
4 604
5 4312

List of values

[2, 14, 68, 604, 4312]

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

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