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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.

A219994 Number of tilings of an n X n square using dominoes and right trominoes.

Table of values

n a(n)
0 1
1 0
2 2
3 8
4 380
5 21272
6 5350806
7 3238675344
8 6652506271144
9 38896105985522272
10 711716770252031164458
11 38776997923112110535353528
12 6460929292946758939597712150496
13 3245656750963660788826395580466708824
14 4953412325525289651086730443567098343730966
15 22873302288206466754758793232467436030071524731072

List of values

[1, 0, 2, 8, 380, 21272, 5350806, 3238675344, 6652506271144, 38896105985522272, 711716770252031164458, 38776997923112110535353528, 6460929292946758939597712150496, 3245656750963660788826395580466708824, 4953412325525289651086730443567098343730966, 22873302288206466754758793232467436030071524731072]

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

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