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.

A263749 Number of length n arrays of permutations of 0..n-1 with each element moved by -5 to 5 places and every three consecutive elements having its maximum within 5 of its minimum.

Table of values

n a(n)
1 1
2 2
3 6
4 24
5 120
6 720
7 1560
8 2352
9 4704
10 10946
11 28655
12 83622
13 230716
14 604056
15 1498904
16 3627824
17 8885872
18 22445448
19 57373588
20 147086040
21 375553984
22 951141040
23 2395384168
24 6035991620
25 15241258584
26 38573288432
27 97763641880
28 247758889696

List of values

[1, 2, 6, 24, 120, 720, 1560, 2352, 4704, 10946, 28655, 83622, 230716, 604056, 1498904, 3627824, 8885872, 22445448, 57373588, 147086040, 375553984, 951141040, 2395384168, 6035991620, 15241258584, 38573288432, 97763641880, 247758889696]

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

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