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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.

A247127 Number of tilings of a 5 X n rectangle using n pentominoes of shapes V, U, X, N.

Table of values

n a(n)
0 1
1 0
2 0
3 1
4 4
5 0
6 9
7 8
8 24
9 17
10 78
11 64
12 227
13 212
14 664
15 699
16 2004
17 2220
18 6033
19 7196
20 18112
21 22859
22 54882
23 72560
24 166251
25 229284
26 505632
27 721421
28 1540532
29 2264668
30 4702135
31 7092742
32 14376450
33 22165709
34 44024116
35 69154334
36 134973515
37 215459398
38 414268932

List of values

[1, 0, 0, 1, 4, 0, 9, 8, 24, 17, 78, 64, 227, 212, 664, 699, 2004, 2220, 6033, 7196, 18112, 22859, 54882, 72560, 166251, 229284, 505632, 721421, 1540532, 2264668, 4702135, 7092742, 14376450, 22165709, 44024116, 69154334, 134973515, 215459398, 414268932]

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

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