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.

A240464 Number of 5Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or three plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.

Table of values

n a(n)
1 66
2 2200
3 75167
4 2632690
5 92193017
6 3228706651
7 113105814752
8 3962629938717
9 138830275066900
10 4863899993991019
11 170406516596392953
12 5970190697057475835
13 209165606073684385931
14 7328116621928639369238
15 256740568387799086329458

List of values

[66, 2200, 75167, 2632690, 92193017, 3228706651, 113105814752, 3962629938717, 138830275066900, 4863899993991019, 170406516596392953, 5970190697057475835, 209165606073684385931, 7328116621928639369238, 256740568387799086329458]

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

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