21,0,251
#
in steps
000000 000000
000000
0000ff 0000ff
0000ff
00007f 00007f
00007f
007f00 007f00
007f00
007f7f 007f7f
007f7f
0500fe 0500fe
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007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
0a00fd 0a00fd
0a00fd
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
0f00fc 0f00fc
0f00fc
7f00ff 7f00ff
7f00ff
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7f7f00
7f7f7f 7f7f7f
7f7f7f
1500fb 1500fb
1500fb
7f7fff 7f7fff
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
1a00fa 1a00fa
1a00fa
ff0000 ff0000
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1f00f9
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ff7f7f ff7f7f
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ff7fff ff7fff
ff7fff
2400f8 2400f8
2400f8
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2a00f8 2a00f8
2a00f8