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.

A222653 Number of nX4 0..3 arrays with no more than floor(nX4/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..3 order.

Table of values

n a(n)
1 11
2 724
3 61757
4 5024944
5 411489189
6 33625853402
7 2757290901238
8 226934394962954
9 18748702054088170
10 1554468757231979806
11 129297779576953689571
12 10785833060389951147809
13 902060948747063990782774

List of values

[11, 724, 61757, 5024944, 411489189, 33625853402, 2757290901238, 226934394962954, 18748702054088170, 1554468757231979806, 129297779576953689571, 10785833060389951147809, 902060948747063990782774]

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

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