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.

A301399 Number of nX7 0..1 arrays with every element equal to 2, 3, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 0
2 41
3 554
4 15538
5 521514
6 16325745
7 528025038
8 16971131642
9 546618326745
10 17603736711807
11 566956049378525
12 18260390329067940
13 588124654381330816
14 18942222518786814929
15 610087935644210871329
16 19649617831383406991765

List of values

[0, 41, 554, 15538, 521514, 16325745, 528025038, 16971131642, 546618326745, 17603736711807, 566956049378525, 18260390329067940, 588124654381330816, 18942222518786814929, 610087935644210871329, 19649617831383406991765]

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

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