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.

A300468 Number of nX4 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 8
2 108
3 925
4 8608
5 80914
6 759100
7 7121067
8 66808673
9 626787854
10 5880428484
11 55169285001
12 517589818216
13 4855948719471
14 45557770236528
15 427416051858041
16 4009952208993844
17 37620760026099796
18 352952232638874508

List of values

[8, 108, 925, 8608, 80914, 759100, 7121067, 66808673, 626787854, 5880428484, 55169285001, 517589818216, 4855948719471, 45557770236528, 427416051858041, 4009952208993844, 37620760026099796, 352952232638874508]

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

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