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.

A224001 Number of 3 X n 0..2 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.

Table of values

n a(n)
1 27
2 157
3 476
4 1144
5 2403
6 4614
7 8291
8 14141
9 23109
10 36428
11 55674
12 82826
13 120331
14 171174
15 238953
16 327959
17 443261
18 590796
19 777464
20 1011228
21 1301219
22 1657846
23 2092911
24 2619729
25 3253253
26 4010204
27 4909206
28 5970926
29 7218219
30 8676278

List of values

[27, 157, 476, 1144, 2403, 4614, 8291, 14141, 23109, 36428, 55674, 82826, 120331, 171174, 238953, 327959, 443261, 590796, 777464, 1011228, 1301219, 1657846, 2092911, 2619729, 3253253, 4010204, 4909206, 5970926, 7218219, 8676278]