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.

A212469 Number of 0..3 arrays of length n+11 with sum no more than 18 in any length 12 subsequence (=50% duty cycle).

Table of values

n a(n)
1 9240426
2 32644314
3 118029501
4 430682205
5 1578372444
6 5795798788
7 21292987433
8 78186208521
9 286703599009
10 1049119428341
11 3828209603876
12 13919545400124
13 50392127733527
14 182633247168566
15 663071942478215
16 2410713609407184

List of values

[9240426, 32644314, 118029501, 430682205, 1578372444, 5795798788, 21292987433, 78186208521, 286703599009, 1049119428341, 3828209603876, 13919545400124, 50392127733527, 182633247168566, 663071942478215, 2410713609407184]