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A057123 Global ranks of terms of A057122: tells which terms of A014486 form rooted plane binary trees also when interpreted as codes for ordinary rooted planar trees.

%I A057123 #10 Jul 02 2022 01:51:18
%S A057123 0,2,12,16,91,99,124,140,165,868,881,944,970,1014,1213,1221,1364,1398,
%T A057123 1442,1633,1649,1736,1887,9474,9493,9619,9657,9727,10317,10330,10606,
%U A057123 10657,10727,11130,11156,11295,11550,13452,13465,13528,13554,13598
%N A057123 Global ranks of terms of A057122: tells which terms of A014486 form rooted plane binary trees also when interpreted as codes for ordinary rooted planar trees.
%H A057123 <a href="/index/Ro#rooted">Index entries for sequences related to rooted trees</a>
%e A057123 E.g., we have codes A014486(2) = 10, A014486(12) = 180, A014486(16) = 210, A014486(91) = 2920, for which the corresponding mountain ranges are:
%e A057123 ................................./\/\
%e A057123 ......../\/\...../\/\........./\/____\
%e A057123 /\/\./\/____\.../____\/\.../\/________\
%e A057123 and corresponding trees have degree 3 in all non-leaf, non-root vertices:
%e A057123 ...............................0.0
%e A057123 ........0.0......0.0..........0.1.
%e A057123 0.0....0.1........1.0........0.1..
%e A057123 .1......1..........1..........1...
%p A057123 map(CatalanRankGlobal, A057122)
%K A057123 nonn
%O A057123 0,2
%A A057123 _Antti Karttunen_, Aug 11 2000