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.

0, 2, 12, 16, 91, 99, 124, 140, 165, 868, 881, 944, 970, 1014, 1213, 1221, 1364, 1398, 1442, 1633, 1649, 1736, 1887, 9474, 9493, 9619, 9657, 9727, 10317, 10330, 10606, 10657, 10727, 11130, 11156, 11295, 11550, 13452, 13465, 13528, 13554, 13598

Offset

0,2

Links

Table of n, a(n) for n=0..41.

Index entries for sequences related to rooted trees

Example

E.g., we have codes A014486(2) = 10, A014486(12) = 180, A014486(16) = 210, A014486(91) = 2920, for which the corresponding mountain ranges are:
................................./\/\
......../\/\...../\/\........./\/____\
/\/\./\/____\.../____\/\.../\/________\
and corresponding trees have degree 3 in all non-leaf, non-root vertices:
...............................0.0
........0.0......0.0..........0.1.
0.0....0.1........1.0........0.1..
.1......1..........1..........1...

Maple

map(CatalanRankGlobal, A057122)

Crossrefs

Sequence in context: A113802 A274890 A327570 * A358783 A134833 A057827

Adjacent sequences: A057120 A057121 A057122 * A057124 A057125 A057126

Keyword

nonn

Author

Antti Karttunen, Aug 11 2000

Status

approved