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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.

A220059 Number of tilings of a 9 X n rectangle using right trominoes and 1 X 1 tiles.

Table of values

n a(n)
0 1
1 1
2 4895
3 358397
4 103628653
5 16939662301
6 3448441154503
7 643234164533111
8 124179182077944123
9 23649239068131551559
10 4528155459015015278497
11 865169296748334990311763
12 165442366105217743521821785
13 31626233120646483498726015897
14 6046521630766477909485058575551

List of values

[1, 1, 4895, 358397, 103628653, 16939662301, 3448441154503, 643234164533111, 124179182077944123, 23649239068131551559, 4528155459015015278497, 865169296748334990311763, 165442366105217743521821785, 31626233120646483498726015897, 6046521630766477909485058575551]

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

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