A057122 - OEIS

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A057122

The binary encoding (as a rooted planar tree) of each rooted planar binary tree. See A057123 for illustration.

0, 10, 180, 210, 2920, 2980, 3380, 3490, 3730, 46800, 46920, 47720, 47940, 48420, 54120, 54180, 55860, 56130, 56610, 59700, 59810, 60690, 62610, 748960, 749200, 750800, 751240, 752200, 763600, 763720, 767080, 767620, 768580, 774760, 774980

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

COMMENTS

bintree_depth_first2tree given in A057119.

LINKS

Table of n, a(n) for n=0..34.

MAPLE

map(bintree_depth_first2tree, A014486);

CROSSREFS

Cf. A057119, A057123, A057124. Subset of A057517.

Sequence in context: A302105 A200060 A240561 * A261177 A367986 A113119

Adjacent sequences: A057119 A057120 A057121 * A057123 A057124 A057125

KEYWORD

nonn

AUTHOR

Antti Karttunen, Aug 11 2000

STATUS

approved