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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.

A278456 Number of tilings of a 5 X n rectangle using pentominoes of any shape and monominoes.

Table of values

n a(n)
0 1
1 2
2 50
3 1954
4 56864
5 1532496
6 42238426
7 1178422563
8 32890293494
9 917103556607
10 25552076570350
11 711923354658732
12 19838824712825618
13 552851181380560869
14 15406086995815163663
15 429312063890812931103
16 11963383230714027535776
17 333377000620725693771782

List of values

[1, 2, 50, 1954, 56864, 1532496, 42238426, 1178422563, 32890293494, 917103556607, 25552076570350, 711923354658732, 19838824712825618, 552851181380560869, 15406086995815163663, 429312063890812931103, 11963383230714027535776, 333377000620725693771782]

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

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