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.

A263441 Number of nX3 arrays of permutations of 0..n*3-1 with each element moved a city block distance of 0 or 3.

Table of values

n a(n)
1 1
2 4
3 49
4 1770
5 52352
6 1095488
7 20725780
8 482961978
9 11815143411
10 287647951708
11 6707640025800
12 157137244838144
13 3691446486456184
14 87568971473535200
15 2068832357068222368
16 48886506679849706508
17 1152745723771781775300

List of values

[1, 4, 49, 1770, 52352, 1095488, 20725780, 482961978, 11815143411, 287647951708, 6707640025800, 157137244838144, 3691446486456184, 87568971473535200, 2068832357068222368, 48886506679849706508, 1152745723771781775300]

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

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