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.

A223962 Number of 2 X n 0..3 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.

Table of values

n a(n)
1 16
2 85
3 295
4 805
5 1876
6 3906
7 7470
8 13365
9 22660
10 36751
11 57421
12 86905
13 127960
14 183940
15 258876
16 357561
17 485640
18 649705
19 857395
20 1117501
21 1440076
22 1836550
23 2319850
24 2904525
25 3606876
26 4445091
27 5439385
28 6612145
29 7988080
30 9594376

List of values

[16, 85, 295, 805, 1876, 3906, 7470, 13365, 22660, 36751, 57421, 86905, 127960, 183940, 258876, 357561, 485640, 649705, 857395, 1117501, 1440076, 1836550, 2319850, 2904525, 3606876, 4445091, 5439385, 6612145, 7988080, 9594376]