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.

A263761 Number of length n arrays of permutations of 0..n-1 with each element moved by -5 to 5 places and exactly one more element moved upwards than downwards.

Table of values

n a(n)
1 0
2 0
3 1
4 4
5 31
6 146
7 961
8 3662
9 18444
10 69848
11 326102
12 1330424
13 6299674
14 26712358
15 124560630
16 533971782
17 2439626795
18 10546384942
19 47745529864
20 208543550082
21 940653815829
22 4138965244350
23 18611240779758
24 82249270808254

List of values

[0, 0, 1, 4, 31, 146, 961, 3662, 18444, 69848, 326102, 1330424, 6299674, 26712358, 124560630, 533971782, 2439626795, 10546384942, 47745529864, 208543550082, 940653815829, 4138965244350, 18611240779758, 82249270808254]

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

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