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.

A219869 Number of tilings of a 6 X n rectangle using dominoes and straight (3 X 1) trominoes.

Table of values

n a(n)
0 1
1 2
2 30
3 472
4 5624
5 82634
6 1143834
7 15859323
8 223026907
9 3105936858
10 43427618185
11 606962113407
12 8477372675760
13 118475405895601
14 1655302050975409
15 23128348583334118
16 323168394713538001
17 4515400902297318144
18 63091618970759626487
19 881547198837947075202

List of values

[1, 2, 30, 472, 5624, 82634, 1143834, 15859323, 223026907, 3105936858, 43427618185, 606962113407, 8477372675760, 118475405895601, 1655302050975409, 23128348583334118, 323168394713538001, 4515400902297318144, 63091618970759626487, 881547198837947075202]

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

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