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.

A219950 Number of tilings of a 9 X n rectangle using right trominoes and 2 X 2 tiles.

Table of values

n a(n)
0 1
1 0
2 16
3 0
4 560
5 384
6 46824
7 253952
8 5141408
9 44013568
10 628801280
11 6441106368
12 81395792936
13 898467518528
14 10813539098984
15 123094927843072
16 1452323503655432
17 16743873126866752
18 195934939996794440
19 2270867565108570304
20 26483057736012701952

List of values

[1, 0, 16, 0, 560, 384, 46824, 253952, 5141408, 44013568, 628801280, 6441106368, 81395792936, 898467518528, 10813539098984, 123094927843072, 1452323503655432, 16743873126866752, 195934939996794440, 2270867565108570304, 26483057736012701952]

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

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