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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.

A333837 Number of ways to collapse an n-rowed triangular formation of dominoes.

Table of values

n a(n)
0 1
1 2
2 5
3 18
4 97
5 802
6 10565
7 228850
8 8289217
9 506526530
10 52501381765
11 9260170733266
12 2784551512218145
13 1429063630276963426
14 1252517782851235507141
15 1875484239084442842046130
16 4798818821638537354534159233
17 20984654018757393270224583817858

List of values

[1, 2, 5, 18, 97, 802, 10565, 228850, 8289217, 506526530, 52501381765, 9260170733266, 2784551512218145, 1429063630276963426, 1252517782851235507141, 1875484239084442842046130, 4798818821638537354534159233, 20984654018757393270224583817858]

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

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