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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.

A387619 Number of ways to tile a 2 X n strip with squares, dominoes, and (straight and bent) trominoes.

Table of values

n a(n)
0 1
1 2
2 11
3 51
4 235
5 1092
6 5064
7 23489
8 108954
9 505377
10 2344171
11 10873339
12 50435526
13 233943074
14 1085135139
15 5033353844
16 23347000765
17 108294084141
18 502317568673
19 2329978980834
20 10807509809918
21 50130181109907
22 232526743191648
23 1078565548781339
24 5002881075314417

List of values

[1, 2, 11, 51, 235, 1092, 5064, 23489, 108954, 505377, 2344171, 10873339, 50435526, 233943074, 1085135139, 5033353844, 23347000765, 108294084141, 502317568673, 2329978980834, 10807509809918, 50130181109907, 232526743191648, 1078565548781339, 5002881075314417]

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

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