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.

A213465 Number of 0..3 arrays of length 2*n with sum less than 3*n in any length 2n subsequence (=less than 50% duty cycle).

Table of values

n a(n)
1 6
2 106
3 1758
4 28722
5 466136
6 7536790
7 121573668
8 1957953138
9 31497261096
10 506264941416
11 8132104116670
12 130559338628190
13 2095252193645448
14 33614011364219588
15 539119053140521448
16 8644670545679274098

List of values

[6, 106, 1758, 28722, 466136, 7536790, 121573668, 1957953138, 31497261096, 506264941416, 8132104116670, 130559338628190, 2095252193645448, 33614011364219588, 539119053140521448, 8644670545679274098]