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.

A239825 Number of 7Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it, modulo 4.

Table of values

n a(n)
1 293
2 78188
3 28156167
4 9807771898
5 3347474694032
6 1154988223050638
7 399696014140196630
8 138146553326582677362
9 47759100046784529992245
10 16518942523671833416785350
11 5714008803899171208707626059

List of values

[293, 78188, 28156167, 9807771898, 3347474694032, 1154988223050638, 399696014140196630, 138146553326582677362, 47759100046784529992245, 16518942523671833416785350, 5714008803899171208707626059]

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

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