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.

A064941 Quartering a 2n X 2n chessboard (reference A257952) considering only the 90-deg rotationally symmetric results (omitting results with only 180-deg symmetry).

Table of values

n a(n)
1 1
2 3
3 26
4 596
5 38171
6 7083827
7 3852835452
8 6200587517574
9 29752897658253125
10 427721252609771505989
11 18479976131829456895423324
12 2405174963192312814001570260392
13 944597040906414962273553855513194341
14 1120924326970482645724785944664901286951323

List of values

[1, 3, 26, 596, 38171, 7083827, 3852835452, 6200587517574, 29752897658253125, 427721252609771505989, 18479976131829456895423324, 2405174963192312814001570260392, 944597040906414962273553855513194341, 1120924326970482645724785944664901286951323]

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

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