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.

A281601 Number of nX4 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

Table of values

n a(n)
1 11
2 110
3 1283
4 16198
5 203276
6 2563481
7 32354824
8 408458506
9 5156857179
10 65107404580
11 822011501060
12 10378295092963
13 131031076361292
14 1654331920396230
15 20886756502623605
16 263705605573971334

List of values

[11, 110, 1283, 16198, 203276, 2563481, 32354824, 408458506, 5156857179, 65107404580, 822011501060, 10378295092963, 131031076361292, 1654331920396230, 20886756502623605, 263705605573971334]

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

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