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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.

A332865 Number of placements of zero or more dominoes on the n X n grid where no two empty squares are horizontally adjacent.

Table of values

n a(n)
1 1
2 4
3 48
4 1427
5 140555
6 40008789
7 33656587715
8 84588476099284
9 626461671945179295
10 13776144517953719025396
11 897220763259635483826935324
12 173109540246969825014223808529273
13 98978509126162805673620043358494745638
14 167661422725328648892707605323564506782035252

List of values

[1, 4, 48, 1427, 140555, 40008789, 33656587715, 84588476099284, 626461671945179295, 13776144517953719025396, 897220763259635483826935324, 173109540246969825014223808529273, 98978509126162805673620043358494745638, 167661422725328648892707605323564506782035252]

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

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