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.

A263741 Number of length n arrays of permutations of 0..n-1 with each element moved by -5 to 5 places and equal numbers of elements moved upwards and downwards.

Table of values

n a(n)
1 1
2 2
3 4
4 14
5 46
6 282
7 1118
8 5962
9 21974
10 100324
11 384813
12 1770579
13 7304326
14 33789034
15 142823462
16 650681108
17 2776615816
18 12494221594
19 53928255898
20 241817051980
21 1054482471250
22 4720387107791
23 20718599970171
24 92576815674458

List of values

[1, 2, 4, 14, 46, 282, 1118, 5962, 21974, 100324, 384813, 1770579, 7304326, 33789034, 142823462, 650681108, 2776615816, 12494221594, 53928255898, 241817051980, 1054482471250, 4720387107791, 20718599970171, 92576815674458]

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

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