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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.

A250663 Number of tilings of a 12 X n rectangle using 2n hexominoes of shape I.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 9
7 19
8 31
9 45
10 61
11 79
12 196
13 419
14 786
15 1341
16 2134
17 3221
18 5789
19 10995
20 20621
21 37149
22 63931
23 105379
24 180201
25 319826
26 578034
27 1040971
28 1840549
29 3171726
30 5465324
31 9529019
32 16830425
33 29914626
34 53016504
35 92934619
36 161999425
37 282619059
38 495436514

List of values

[1, 1, 1, 1, 1, 1, 9, 19, 31, 45, 61, 79, 196, 419, 786, 1341, 2134, 3221, 5789, 10995, 20621, 37149, 63931, 105379, 180201, 319826, 578034, 1040971, 1840549, 3171726, 5465324, 9529019, 16830425, 29914626, 53016504, 92934619, 161999425, 282619059, 495436514]

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

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