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.

A252981 Number of nX6 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 2 and every value increasing by 0 or 1 with every step right, diagonally se or down.

Table of values

n a(n)
1 10
2 85
3 851
4 8487
5 67537
6 432842
7 5672484
8 36112108
9 129234988
10 322183180
11 635379492
12 1074743076
13 1640984356
14 2334103332
15 3154100004
16 4100974372
17 5174726436
18 6375356196
19 7702863652
20 9157248804
21 10738511652
22 12446652196

List of values

[10, 85, 851, 8487, 67537, 432842, 5672484, 36112108, 129234988, 322183180, 635379492, 1074743076, 1640984356, 2334103332, 3154100004, 4100974372, 5174726436, 6375356196, 7702863652, 9157248804, 10738511652, 12446652196]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.