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A075172 Number of edges in each rooted plane tree produced with the binary run length unranking algorithm presented in A075171. 2
0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 3, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 5, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Also the digital length of A075171(n)/ 2. Each value v occurs A000108(v) times.

LINKS

Table of n, a(n) for n=0..104.

CROSSREFS

Permutation of A072643.

Sequence in context: A174199 A072660 A237720 * A347643 A237261 A004258

Adjacent sequences:  A075169 A075170 A075171 * A075173 A075174 A075175

KEYWORD

nonn

AUTHOR

Antti Karttunen, Sep 13 2002

STATUS

approved

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Last modified September 20 16:50 EDT 2021. Contains 347586 sequences. (Running on oeis4.)