cp's OEIS Frontend

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.

A066863 Number of binary arrangements without adjacent 1's on n X n staggered hexagonal grid.

Table of values

n a(n)
1 2
2 6
3 43
4 557
5 14432
6 719469
7 70372090
8 13351521479
9 4941545691252
10 3559349503024593
11 4993739972681894885
12 13642580224488264353504
13 72582736229683196932680697
14 751993955499337790653321567382
15 15172223086707160824288341875907978

List of values

[2, 6, 43, 557, 14432, 719469, 70372090, 13351521479, 4941545691252, 3559349503024593, 4993739972681894885, 13642580224488264353504, 72582736229683196932680697, 751993955499337790653321567382, 15172223086707160824288341875907978]

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

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