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.

A264876 Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having directed index change 0,1 0,-1 -2,0 or 1,1.

Table of values

n a(n)
1 0
2 20
3 228
4 2348
5 22400
6 207424
7 1946752
8 18265856
9 171168256
10 1602206720
11 14987712512
12 140201013248
13 1311499247616
14 12268128616448
15 114758535184384
16 1073466206519296
17 10041325376634880
18 93927687502692352
19 878609985428783104

List of values

[0, 20, 228, 2348, 22400, 207424, 1946752, 18265856, 171168256, 1602206720, 14987712512, 140201013248, 1311499247616, 12268128616448, 114758535184384, 1073466206519296, 10041325376634880, 93927687502692352, 878609985428783104]

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

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