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.

A264679 Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change -1,-1 1,0 -1,-2 -2,-2 or 0,1.

Table of values

n a(n)
1 0
2 19
3 145
4 890
5 9205
6 88687
7 714235
8 5871821
9 50048019
10 422792433
11 3525222983
12 29504247476
13 247603962409
14 2074917109436
15 17373094676114
16 145530813422748
17 1219291683848838
18 10213817024920997
19 85555541651802803
20 716687147462600097

List of values

[0, 19, 145, 890, 9205, 88687, 714235, 5871821, 50048019, 422792433, 3525222983, 29504247476, 247603962409, 2074917109436, 17373094676114, 145530813422748, 1219291683848838, 10213817024920997, 85555541651802803, 716687147462600097]

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

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