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.

A180769 Half the number of nX9 binary arrays with each element equal to at least one neighbor.

Original entry on oeis.org

21, 12377, 3365327, 953982820, 273289411333, 78060898850787, 22310318523546774, 6375989200126477033, 1822180205677117048273, 520757452730725828979262, 148826239836327503673819877
Offset: 1

Views

Author

R. H. Hardin Sep 20 2010

Keywords

Comments

Column 9 of A180771

Links

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

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