id:A075167 - OEIS Search Results

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Number of edges in each rooted plane tree produced with the prime factorization unranking algorithm presented in A075166.

+0
7

0, 1, 2, 2, 3, 3, 4, 3, 3, 4, 5, 4, 6, 5, 4, 3, 7, 4, 8, 5, 5, 6, 9, 4, 4, 7, 4, 6, 10, 5, 11, 4, 6, 8, 5, 5, 12, 9, 7, 5, 13, 6, 14, 7, 5, 10, 15, 5, 5, 5, 8, 8, 16, 5, 6, 6, 9, 11, 17, 6, 18, 12, 6, 4, 7, 7, 19, 9, 10, 6, 20, 5, 21, 13, 5, 10, 6, 8, 22, 6, 4, 14, 23, 7, 8, 15, 11, 7, 24, 6, 7, 11 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`Also the digital length of A075166(n)/ 2. Each value v occurs A000108(v) times.`
	FORMULA	`a(n) = A106457(A106442(n)). - Antti Karttunen (Antti.Karttunen(AT)iki.fi), May 09 2005`
	CROSSREFS	`Permutation of A072643.` `Sequence in context: A045430 A067693 A099053 this_sequence A057935 A124831 A105096` `Adjacent sequences: A075164 A075165 A075166 this_sequence A075168 A075169 A075170`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen Sep 13 2002`
	EXTENSIONS	`More terms from Antti Karttunen (Antti.Karttunen(AT)iki.fi), May 09 2005`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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