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.

A247596 Number of nonisomorphic binary n X n matrices with three 1's per column under row and column permutations.

Table of values

n a(n)
3 1
4 5
5 35
6 410
7 6178
8 122038
9 2921607
10 81609320
11 2588949454
12 91699869557
13 3582942335285
14 153048366545566
15 7096576775166579
16 355120233277118103
17 19084972486216897560
18 1096965038775477639368
19 67192642484367187943761
20 4372413334294007638726854

List of values

[1, 5, 35, 410, 6178, 122038, 2921607, 81609320, 2588949454, 91699869557, 3582942335285, 153048366545566, 7096576775166579, 355120233277118103, 19084972486216897560, 1096965038775477639368, 67192642484367187943761, 4372413334294007638726854]

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

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