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.

A264368 Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,0 0,2 1,0 or -1,-2.

Table of values

n a(n)
1 1
2 28
3 784
4 7168
5 65536
6 730368
7 8139609
8 86397399
9 917060089
10 9745523645
11 103564894225
12 1098865637220
13 11659411209744
14 123652174760256
15 1311374995519744
16 13905429141268656
17 147449021266573569

List of values

[1, 28, 784, 7168, 65536, 730368, 8139609, 86397399, 917060089, 9745523645, 103564894225, 1098865637220, 11659411209744, 123652174760256, 1311374995519744, 13905429141268656, 147449021266573569]

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

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