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.

A263785 Number of length n arrays of permutations of 0..n-1 with each element moved by -6 to 6 places and exactly two more elements moved upwards than downwards.

Table of values

n a(n)
1 0
2 0
3 0
4 1
5 5
6 66
7 392
8 3522
9 15699
10 104014
11 463811
12 2735525
13 12858073
14 74523350
15 369725340
16 2110660483
17 10653316753
18 59256398945
19 300481718854
20 1633653025795
21 8329842362903
22 44742563812167
23 229817730687508
24 1226116608834208

List of values

[0, 0, 0, 1, 5, 66, 392, 3522, 15699, 104014, 463811, 2735525, 12858073, 74523350, 369725340, 2110660483, 10653316753, 59256398945, 300481718854, 1633653025795, 8329842362903, 44742563812167, 229817730687508, 1226116608834208]

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

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