21,0,169
#
in steps
000000 000000
000000
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
050089 050089
050089
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007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
0a0094 0a0094
0a0094
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
10009e 10009e
10009e
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7f00ff
7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
1500a9 1500a9
1500a9
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
1a00b4 1a00b4
1a00b4
ff0000 ff0000
ff0000
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ff007f
ff00ff ff00ff
ff00ff
2000be 2000be
2000be
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ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
2500c9 2500c9
2500c9
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2b01d4 2b01d4
2b01d4