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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.

A240411 Number of nX6 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 or zero plus the sum of the elements diagonally to its northwest, modulo 4.

Table of values

n a(n)
1 14
2 493
3 17075
4 773196
5 33373526
6 1615637679
7 74389514201
8 3790596926634
9 180050906023325
10 9401180099632567
11 454863378057031995

List of values

[14, 493, 17075, 773196, 33373526, 1615637679, 74389514201, 3790596926634, 180050906023325, 9401180099632567, 454863378057031995]

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

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