File:Nim-products of 2-powers; xor.svg

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Description
The dark gray entries in this 16×16 matrix are the top left submatrix.

256×256 binary matrix:
M(i,j) = 1 weight of Sloane's A223541(i,j) is odd

XOR of the 256 matrices in Nim-products of 2-powers; dual
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Author
Watchduck
You can name the author as "T. Piesk", "Tilman Piesk" or "Watchduck".

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I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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current19:18, 26 March 2013Thumbnail for version as of 19:18, 26 March 20131,560 × 1,560 (169 KB)Watchduck (talk | contribs){{Information |Description ={{en|1=Parity of the binary digit sums of {{oeis|A223541}} This pattern is also seen in the background colors of File:Nimber products of powers of two.svg.}} |Source ={{own}} |Author ={{Mate2code}} |...

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