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.

A189587 Number of permutations of 1..n with displacements restricted to {-5,-4,-3,-1,0,2}.

Table of values

n a(n)
1 1
2 1
3 2
4 4
5 10
6 23
7 48
8 94
9 188
10 389
11 808
12 1692
13 3505
14 7225
15 14895
16 30751
17 63601
18 131549
19 272040
20 562259
21 1161936
22 2401478
23 4963797
24 10260810
25 21209922
26 43841365
27 90619265
28 187308371
29 387166791
30 800278120
31 1654186266
32 3419218303
33 7067543993

List of values

[1, 1, 2, 4, 10, 23, 48, 94, 188, 389, 808, 1692, 3505, 7225, 14895, 30751, 63601, 131549, 272040, 562259, 1161936, 2401478, 4963797, 10260810, 21209922, 43841365, 90619265, 187308371, 387166791, 800278120, 1654186266, 3419218303, 7067543993]

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

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