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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.

A234931 Number of tilings of a 5 X n rectangle using n pentominoes of shapes F, U, N.

Table of values

n a(n)
0 1
1 0
2 0
3 0
4 2
5 0
6 0
7 0
8 4
9 0
10 8
11 0
12 16
13 0
14 40
15 0
16 64
17 16
18 200
19 96
20 504
21 464
22 1528
23 1664
24 4376
25 5616
26 12792
27 18192
28 38264
29 58384
30 115832
31 186368
32 355808
33 589344
34 1095408
35 1853664
36 3383656
37 5802016
38 10470376
39 18125280
40 32461312
41 56552736
42 100782696
43 176318464

List of values

[1, 0, 0, 0, 2, 0, 0, 0, 4, 0, 8, 0, 16, 0, 40, 0, 64, 16, 200, 96, 504, 464, 1528, 1664, 4376, 5616, 12792, 18192, 38264, 58384, 115832, 186368, 355808, 589344, 1095408, 1853664, 3383656, 5802016, 10470376, 18125280, 32461312, 56552736, 100782696, 176318464]

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

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