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A057122 The binary encoding (as a rooted planar tree) of each rooted planar binary tree. See A057123 for illustration. 4
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 A113119 A067416

Adjacent sequences:  A057119 A057120 A057121 * A057123 A057124 A057125

KEYWORD

nonn

AUTHOR

Antti Karttunen, Aug 11 2000

STATUS

approved

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Last modified October 16 16:20 EDT 2021. Contains 348042 sequences. (Running on oeis4.)