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.

A271802 Number of cuttings of an n X n checkerboard along grid lines into two pieces with holes disallowed.

Table of values

n a(n)
1 0
2 6
3 52
4 614
5 16000
6 1114394
7 220762028
8 127074234622
9 215163221802400
10 1080509693050320314
11 16181730102294154610684
12 725449589191165593072311582
13 97631783799192329642727718567824
14 39528641527526180063041016094650084850

List of values

[0, 6, 52, 614, 16000, 1114394, 220762028, 127074234622, 215163221802400, 1080509693050320314, 16181730102294154610684, 725449589191165593072311582, 97631783799192329642727718567824, 39528641527526180063041016094650084850]

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

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