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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.

A232758 Number of tilings of a 5 X 4n rectangle with 5n tetrominoes of any shape.

Table of values

n a(n)
0 1
1 454
2 800290
3 1601437357
4 3241461223149
5 6567785027546670
6 13308739956169022829
7 26968602201880345700924
8 54648749693738816337819872
9 110739369582262512718466467943
10 224400523235840773380469046439552
11 454721704049686545819883721501971896

List of values

[1, 454, 800290, 1601437357, 3241461223149, 6567785027546670, 13308739956169022829, 26968602201880345700924, 54648749693738816337819872, 110739369582262512718466467943, 224400523235840773380469046439552, 454721704049686545819883721501971896]

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

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