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.

A079983 Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={-2,1,2}.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 3
5 6
6 12
7 20
8 35
9 60
10 114
11 207
12 375
13 671
14 1213
15 2180
16 3954
17 7139
18 12892
19 23250
20 41996
21 75793
22 136891
23 247133
24 446211
25 805505
26 1454390
27 2625744
28 4740788
29 8559108
30 15453182
31 27899503
32 50371415
33 90942627
34 164192549
35 296440115

List of values

[1, 1, 1, 1, 3, 6, 12, 20, 35, 60, 114, 207, 375, 671, 1213, 2180, 3954, 7139, 12892, 23250, 41996, 75793, 136891, 247133, 446211, 805505, 1454390, 2625744, 4740788, 8559108, 15453182, 27899503, 50371415, 90942627, 164192549, 296440115]