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.

A280676 Number of 4Xn 0..2 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

Table of values

n a(n)
1 14
2 612
3 12484
4 310365
5 7533245
6 183331502
7 4460317695
8 108520231044
9 2640298250694
10 64238619127022
11 1562929767205929
12 38026186043293995
13 925179685380850290
14 22509684536321285656
15 547662154172647585113

List of values

[14, 612, 12484, 310365, 7533245, 183331502, 4460317695, 108520231044, 2640298250694, 64238619127022, 1562929767205929, 38026186043293995, 925179685380850290, 22509684536321285656, 547662154172647585113]

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

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