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.

A206251 Number of (n+1)X5 0..3 arrays with every 2X2 subblock having zero permanent.

Table of values

n a(n)
1 9409
2 1718209
3 49336576
4 4556324929
5 226637884225
6 16533087493120
7 1006239668280961
8 68438717405988481
9 4427204221759169536
10 295306870252087238017
11 19431114832514090805121
12 1289257317404589497597440

List of values

[9409, 1718209, 49336576, 4556324929, 226637884225, 16533087493120, 1006239668280961, 68438717405988481, 4427204221759169536, 295306870252087238017, 19431114832514090805121, 1289257317404589497597440]

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

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