9,21,135
#
in steps
000000 000000
000000
071285 071285
071285
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
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007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
081386 081386
081386
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
081486 081486
081486
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7f7f7f 7f7f7f
7f7f7f
091587 091587
091587
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
091687 091687
091687
ff0000 ff0000
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0a1788
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
0a1888 0a1888
0a1888
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
0b1989 0b1989
0b1989