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.

A239818 Number of nX7 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it, modulo 4.

Table of values

n a(n)
1 312
2 118253
3 36627126
4 12059066460
5 3842974545029
6 1246285848518417
7 399696014140196630
8 129035213192353255123
9 41500218830682985410810
10 13375093569069190733883673
11 4305661324527210642658505946

List of values

[312, 118253, 36627126, 12059066460, 3842974545029, 1246285848518417, 399696014140196630, 129035213192353255123, 41500218830682985410810, 13375093569069190733883673, 4305661324527210642658505946]

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

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