21,9,252
#
in steps
000000 000000
000000
0000ff 0000ff
0000ff
00007f 00007f
00007f
007f00 007f00
007f00
007f7f 007f7f
007f7f
0502fe 0502fe
0502fe
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007fff
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00ff00
00ff7f 00ff7f
00ff7f
0a04fd 0a04fd
0a04fd
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
1007fd 1007fd
1007fd
7f00ff 7f00ff
7f00ff
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7f7f00
7f7f7f 7f7f7f
7f7f7f
1509fc 1509fc
1509fc
7f7fff 7f7fff
7f7fff
7fff00 7fff00
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
1a0bfb 1a0bfb
1a0bfb
ff0000 ff0000
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200efb 200efb
200efb
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ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
2510fa 2510fa
2510fa
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2b13fa 2b13fa
2b13fa