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.

A302743 Number of 4Xn 0..1 arrays with every element equal to 0, 1, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 8
2 128
3 1652
4 21625
5 285613
6 3778433
7 50012515
8 662080634
9 8765152857
10 116041489300
11 1536272725817
12 20338725884827
13 269264599669170
14 3564797029819794
15 47194388320663969
16 624807045634867762

List of values

[8, 128, 1652, 21625, 285613, 3778433, 50012515, 662080634, 8765152857, 116041489300, 1536272725817, 20338725884827, 269264599669170, 3564797029819794, 47194388320663969, 624807045634867762]

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

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