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.

A212238 Number of 0..2 arrays of length 5+2*n with sum no more than 2*n in any length 2n subsequence (=50% duty cycle).

Table of values

n a(n)
1 353
2 4663
3 51440
4 514687
5 4931630
6 46305966
7 429886243
8 3962696059
9 36354382954
10 332393767866
11 3031533285381
12 27595759169532
13 250826014161861
14 2277103688384513
15 20652344756363304
16 187156724402029627
17 1694914205955775462
18 15340549508692418292
19 138778053213558014181

List of values

[353, 4663, 51440, 514687, 4931630, 46305966, 429886243, 3962696059, 36354382954, 332393767866, 3031533285381, 27595759169532, 250826014161861, 2277103688384513, 20652344756363304, 187156724402029627, 1694914205955775462, 15340549508692418292, 138778053213558014181]