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.

A212933 Number of 4Xn 0..n-1 arrays with no column j greater than column j-1 in all rows.

Table of values

n a(n)
1 1
2 255
3 518320
4 4041974015
5 85800824609376
6 4051316109991426752
7 372271852759802667094256
8 60525940157456181486116315391
9 16213293097463939456656505907266320

List of values

[1, 255, 518320, 4041974015, 85800824609376, 4051316109991426752, 372271852759802667094256, 60525940157456181486116315391, 16213293097463939456656505907266320]

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

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