21,31,253
#
in steps
000000 000000
000000
0000ff 0000ff
0000ff
00007f 00007f
00007f
007f00 007f00
007f00
007f7f 007f7f
007f7f
0507fe 0507fe
0507fe
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007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
0a0ffe 0a0ffe
0a0ffe
00ffff 00ffff
00ffff
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7f007f 7f007f
7f007f
0f17fd 0f17fd
0f17fd
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7f7f00
7f7f7f 7f7f7f
7f7f7f
151ffd 151ffd
151ffd
7f7fff 7f7fff
7f7fff
7fff00 7fff00
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
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1a26fd 1a26fd
1a26fd
ff0000 ff0000
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1f2efc 1f2efc
1f2efc
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
2436fc 2436fc
2436fc
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2a3efc 2a3efc
2a3efc