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.

A228681 Number of n X 6 binary arrays with no two ones adjacent horizontally, diagonally or antidiagonally.

Table of values

n a(n)
1 21
2 217
3 2529
4 28977
5 333517
6 3837761
7 44171841
8 508425617
9 5852202757
10 67361890809
11 775372578689
12 8924976046401
13 102731553583965
14 1182498825731233
15 13611237290882689
16 156673123529460833
17 1803397245448244085

List of values

[21, 217, 2529, 28977, 333517, 3837761, 44171841, 508425617, 5852202757, 67361890809, 775372578689, 8924976046401, 102731553583965, 1182498825731233, 13611237290882689, 156673123529460833, 1803397245448244085]

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

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