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.

A200838 T(n,k)=Number of 0..k arrays x(0..n+1) of n+2 elements without any two consecutive increases or two consecutive decreases.

Table of values

n a(n)
1 8
2 25
3 16
4 56
5 69
6 32
7 105
8 194
9 191
10 64
11 176
12 435
13 676
14 529
15 128
16 273
17 846
18 1817
19 2356
20 1465
21 256
22 400
23 1491
24 4108
25 7587
26 8210
27 4057
28 512
29 561
30 2444
31 8239
32 19930
33 31677
34 28610
35 11235
36 1024
37 760
38 3789
39 15128
40 45465
41 96690
42 132263
43 99700
44 31113
45 2048

List of values

[8, 25, 16, 56, 69, 32, 105, 194, 191, 64, 176, 435, 676, 529, 128, 273, 846, 1817, 2356, 1465, 256, 400, 1491, 4108, 7587, 8210, 4057, 512, 561, 2444, 8239, 19930, 31677, 28610, 11235, 1024, 760, 3789, 15128, 45465, 96690, 132263, 99700, 31113, 2048]