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The local ranks of each term of A057547.
3

%I #3 May 01 2014 02:48:29

%S 0,1,3,4,8,9,11,12,13,22,23,25,26,27,31,32,34,35,36,38,39,40,41,64,65,

%T 67,68,69,73,74,76,77,78,80,81,82,83,92,93,95,96,97,101,102,104,105,

%U 106,108,109,110,111,115,116,118,119,120,122,123,124,125,127,128,129

%N The local ranks of each term of A057547.

%F a(n) = CatalanRank(floor(binwidth(A057547[n])/2), A057547[n])

%Y Cf. A057519, A057548, A057550.

%K nonn

%O 0,3

%A _Antti Karttunen_, Sep 07 2000