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.

A223802 Number of 3Xn 0..3 arrays with rows and antidiagonals unimodal.

Table of values

n a(n)
1 64
2 4096
3 110116
4 1658703
5 16979881
6 131295500
7 818316500
8 4293683039
9 19561009057
10 79169569680
11 289707943960
12 971844411710
13 3021916484046
14 8789182733640
15 24090737306249
16 62620436201529
17 155188103218258

List of values

[64, 4096, 110116, 1658703, 16979881, 131295500, 818316500, 4293683039, 19561009057, 79169569680, 289707943960, 971844411710, 3021916484046, 8789182733640, 24090737306249, 62620436201529, 155188103218258]