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.

A252873 Number of n X 5 nonnegative integer arrays with upper left 0 and lower right n+5-4 and value increasing by 0 or 1 with every step right or down.

Table of values

n a(n)
1 6
2 61
3 413
4 1953
5 7313
6 23203
7 64920
8 164399
9 383735
10 836797
11 1722394
12 3373453
13 6327844
14 11427851
15 19956855
16 33823579
17 55806260
18 89871373
19 141584051
20 218630137
21 331472883
22 494170691
23 725385986
24 1049619335
25 1498707293

List of values

[6, 61, 413, 1953, 7313, 23203, 64920, 164399, 383735, 836797, 1722394, 3373453, 6327844, 11427851, 19956855, 33823579, 55806260, 89871373, 141584051, 218630137, 331472883, 494170691, 725385986, 1049619335, 1498707293]

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

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