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.

A067964 Number of binary arrangements without adjacent 1's on n X n array connected n-s nw-se.

Table of values

n a(n)
1 2
2 8
3 90
4 1876
5 103484
6 11462588
7 3118943536
8 1808994829500
9 2465526600093372
10 7394315828592829424
11 50975951518289853305508
12 784977037926751747674903856
13 27509351187362150581313065415008
14 2167705218542258344490649896364635660
15 387057670485382113845659790427906287869964

List of values

[2, 8, 90, 1876, 103484, 11462588, 3118943536, 1808994829500, 2465526600093372, 7394315828592829424, 50975951518289853305508, 784977037926751747674903856, 27509351187362150581313065415008, 2167705218542258344490649896364635660, 387057670485382113845659790427906287869964]

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

Content is available under The OEIS End-User License Agreement.