**a(2n) = 2*a(2n-1), a(2n+1) = 2*a(2n)+1 (also n-th number without consecutive equal binary digits).**

*0, 1, 2, 5, 10, 21, 42, 85, 170, 341, 682, 1365, 2730, 5461, 10922, 21845, 43690*

*5 seqfan posts*

*Sat Oct 15 21:22:47 CEST 2011* [seqfan] binary tree sequences

*Fri Sep 16 03:50:26 CEST 2011* [seqfan] Re: Comments in A101333 are out of place

*Thu Sep 15 22:16:35 CEST 2011* [seqfan] Comments in A101333 are out of place

*Thu Nov 5 09:03:23 CET 2009* [seqfan] Re: Product of run lengths in binary representation of n

*Wed Nov 4 14:43:21 CET 2009* [seqfan] Re: Product of run lengths in binary representation of n

Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword

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