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.

A256818 Number of length n+3 0..1 arrays with at most two downsteps in every n consecutive neighbor pairs.

Table of values

n a(n)
1 16
2 32
3 64
4 128
5 245
6 442
7 753
8 1220
9 1894
10 2836
11 4118
12 5824
13 8051
14 10910
15 14527
16 19044
17 24620
18 31432
19 39676
20 49568
21 61345
22 75266
23 91613
24 110692
25 132834
26 158396
27 187762
28 221344
29 259583
30 302950
31 351947
32 407108
33 469000
34 538224
35 615416
36 701248

List of values

[16, 32, 64, 128, 245, 442, 753, 1220, 1894, 2836, 4118, 5824, 8051, 10910, 14527, 19044, 24620, 31432, 39676, 49568, 61345, 75266, 91613, 110692, 132834, 158396, 187762, 221344, 259583, 302950, 351947, 407108, 469000, 538224, 615416, 701248]