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.

A189597 Number of permutations of 1..n with displacements restricted to {-6,-5,-4,-2,0,1,3}.

Table of values

n a(n)
1 1
2 1
3 2
4 4
5 13
6 35
7 111
8 293
9 718
10 1741
11 4273
12 10855
13 27633
14 71187
15 182287
16 465019
17 1180545
18 2992281
19 7598016
20 19309456
21 49129136
22 125000325
23 318018255
24 808823885
25 2056605339
26 5229131690
27 13296028742
28 33810904043
29 85982027049
30 218658167715

List of values

[1, 1, 2, 4, 13, 35, 111, 293, 718, 1741, 4273, 10855, 27633, 71187, 182287, 465019, 1180545, 2992281, 7598016, 19309456, 49129136, 125000325, 318018255, 808823885, 2056605339, 5229131690, 13296028742, 33810904043, 85982027049, 218658167715]

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

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