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.

A263421 Number of nX3 arrays of permutations of 0..n*3-1 with each element moved a city block distance of 0 or 2.

Table of values

n a(n)
1 2
2 36
3 1272
4 26244
5 532620
6 11751184
7 256052940
8 5521233025
9 119493228528
10 2588597823744
11 56036432705840
12 1213019187980625
13 26261187063569212
14 568530651822400656
15 12307989647701123268
16 266454168798496644900

List of values

[2, 36, 1272, 26244, 532620, 11751184, 256052940, 5521233025, 119493228528, 2588597823744, 56036432705840, 1213019187980625, 26261187063569212, 568530651822400656, 12307989647701123268, 266454168798496644900]

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

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