cp's OEIS Frontend

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.

A247121 Number of tilings of a 5 X 2n rectangle using 2n pentominoes of shapes P, U.

Table of values

n a(n)
0 1
1 2
2 12
3 56
4 248
5 1184
6 5472
7 25376
8 118208
9 548864
10 2550912
11 11856896
12 55098368
13 256070144
14 1190065152
15 5530658816
16 25703241728
17 119453057024
18 555145224192
19 2579979739136
20 11990182412288
21 55723107221504
22 258967268524032
23 1203523043065856
24 5593246378754048

List of values

[1, 2, 12, 56, 248, 1184, 5472, 25376, 118208, 548864, 2550912, 11856896, 55098368, 256070144, 1190065152, 5530658816, 25703241728, 119453057024, 555145224192, 2579979739136, 11990182412288, 55723107221504, 258967268524032, 1203523043065856, 5593246378754048]

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

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