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.

A219472 Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 2 X n array.

Table of values

n a(n)
1 10
2 23
3 68
4 211
5 547
6 1248
7 2663
8 5432
9 10666
10 20206
11 36984
12 65512
13 112528
14 187831
15 305340
16 484415
17 751481
18 1141999
19 1702831
20 2495049
21 3597241
22 5109370
23 7157245
24 9897666
25 13524308
26 18274412
27 24436354
28 32358166
29 42457086
30 55230217
31 71266378

List of values

[10, 23, 68, 211, 547, 1248, 2663, 5432, 10666, 20206, 36984, 65512, 112528, 187831, 305340, 484415, 751481, 1141999, 1702831, 2495049, 3597241, 5109370, 7157245, 9897666, 13524308, 18274412, 24436354, 32358166, 42457086, 55230217, 71266378]