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.

A233429 Number of tilings of a 4 X 5n rectangle with 4n pentominoes of any shape.

Table of values

n a(n)
0 1
1 501
2 890989
3 1666772813
4 3125064284901
5 5859766228545967
6 10987595369808657169
7 20602741350971679371521
8 38632014757792375332001835
9 72438542874037975287077565935
10 135828859204452470219311220073385
11 254691470323770059993623356733063003

List of values

[1, 501, 890989, 1666772813, 3125064284901, 5859766228545967, 10987595369808657169, 20602741350971679371521, 38632014757792375332001835, 72438542874037975287077565935, 135828859204452470219311220073385, 254691470323770059993623356733063003]

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

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