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.

A203356 Number of n X n binary arrays with every 1 immediately preceded by 0 to the left or above.

Table of values

n a(n)
1 1
2 7
3 102
4 5677
5 984703
6 572818585
7 1089970014327
8 6842701992875869
9 141313097261182627960
10 9609805102278645983838526
11 2151172274505675499995093835341
12 1585313606427874519807992162372572320

List of values

[1, 7, 102, 5677, 984703, 572818585, 1089970014327, 6842701992875869, 141313097261182627960, 9609805102278645983838526, 2151172274505675499995093835341, 1585313606427874519807992162372572320]

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

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