Sequence A085183 shown in base 4. Quaternary code for binary trees.
0, 1, 2, 11, 12, 21, 22, 30, 111, 112, 121, 122, 130, 211, 212, 221, 222, 230, 301, 302
3 seqfan posts
Wed Jun 9 22:12:05 CEST 2010 [seqfan] Re: looking for bijections
Wed Jun 9 13:17:26 CEST 2010 [seqfan] Re: looking for bijections
Wed Jun 9 13:11:04 CEST 2010 [seqfan] Re: looking for bijections
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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