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.

A228758 Number of 6Xn binary arrays with top left element equal to 1 and no two ones adjacent horizontally or antidiagonally.

Table of values

n a(n)
1 32
2 144
3 3111
4 29608
5 418370
6 4823826
7 61534448
8 746135864
9 9275632316
10 113914525214
11 1407229306722
12 17335288371612
13 213833281859269
14 2636011878793640
15 32504748521697000
16 400762354405626468

List of values

[32, 144, 3111, 29608, 418370, 4823826, 61534448, 746135864, 9275632316, 113914525214, 1407229306722, 17335288371612, 213833281859269, 2636011878793640, 32504748521697000, 400762354405626468]

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

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