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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.

A162677 Number of different fixed (possibly) disconnected polyominoes (of any area) bounded (not necessarily tightly) by an n*n square.

Table of values

n a(n)
1 1
2 10
3 400
4 57856
5 31522816
6 66605547520
7 554222579875840
8 18303191835587117056
9 2408425353007592768536576
10 1265177138001297870205254369280
11 2655861110791164560222750369099284480

List of values

[1, 10, 400, 57856, 31522816, 66605547520, 554222579875840, 18303191835587117056, 2408425353007592768536576, 1265177138001297870205254369280, 2655861110791164560222750369099284480]

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

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