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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.

A239404 Number of nX7 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of elements above it, modulo 4.

Table of values

n a(n)
1 128
2 44399
3 15591122
4 5277728354
5 1820591502437
6 630657074443394
7 217822754771248124
8 75263099558825967756
9 26030827849718972763027
10 9004105241933423695032678
11 3114444338059091764373199789

List of values

[128, 44399, 15591122, 5277728354, 1820591502437, 630657074443394, 217822754771248124, 75263099558825967756, 26030827849718972763027, 9004105241933423695032678, 3114444338059091764373199789]

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

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