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.

A184673 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock summing to less than 6.

Table of values

n a(n)
1 150
2 1740
3 1740
4 19269
5 67330
6 19269
7 216912
8 2405797
9 2405797
10 216912
11 2430631
12 88458672
13 266060160
14 88458672
15 2430631
16 27278035
17 3225439429
18 30765364899
19 30765364899
20 3225439429
21 27278035
22 305991368
23 117938741095
24 3509487618613

List of values

[150, 1740, 1740, 19269, 67330, 19269, 216912, 2405797, 2405797, 216912, 2430631, 88458672, 266060160, 88458672, 2430631, 27278035, 3225439429, 30765364899, 30765364899, 3225439429, 27278035, 305991368, 117938741095, 3509487618613]

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

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