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.

A114210 Number of derangements of [n] avoiding the patterns 123 and 231.

Table of values

n a(n)
1 0
2 1
3 1
4 3
5 4
6 7
7 8
8 14
9 13
10 23
11 20
12 34
13 28
14 48
15 37
16 64
17 48
18 82
19 60
20 103
21 73
22 126
23 88
24 151
25 104
26 179
27 121
28 209
29 140
30 241
31 160
32 276
33 181
34 313
35 204
36 352
37 228
38 394
39 253
40 438
41 280
42 484
43 308
44 533
45 337
46 584
47 368
48 637
49 400
50 693
51 433
52 751
53 468
54 811
55 504
56 874
57 541
58 939

List of values

[0, 1, 1, 3, 4, 7, 8, 14, 13, 23, 20, 34, 28, 48, 37, 64, 48, 82, 60, 103, 73, 126, 88, 151, 104, 179, 121, 209, 140, 241, 160, 276, 181, 313, 204, 352, 228, 394, 253, 438, 280, 484, 308, 533, 337, 584, 368, 637, 400, 693, 433, 751, 468, 811, 504, 874, 541, 939]