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.

A252973 Number of nX5 nonnegative integer arrays with upper left 0 and lower right n+5-5 and value increasing by 0 or 1 with every step right or down.

Table of values

n a(n)
1 4
2 61
3 770
4 6997
5 46812
6 248182
7 1100210
8 4230324
9 14477724
10 44951694
11 128484004
12 341970798
13 855386126
14 2025957453
15 4571859908
16 9881224135
17 20544547580
18 41246142411
19 80218821614
20 151563108019
21 278867435440
22 500751223536

List of values

[4, 61, 770, 6997, 46812, 248182, 1100210, 4230324, 14477724, 44951694, 128484004, 341970798, 855386126, 2025957453, 4571859908, 9881224135, 20544547580, 41246142411, 80218821614, 151563108019, 278867435440, 500751223536]

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

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