id:A057515 - OEIS Search Results

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Number of separate "mountains" in mountain ranges encoded by A014486, number of bottom branches (trunks) in the corresponding rooted plane trees, i.e. the degree of the root node.

+0
29

0, 1, 2, 1, 3, 2, 2, 1, 1, 4, 3, 3, 2, 2, 3, 2, 2, 1, 1, 2, 1, 1, 1, 5, 4, 4, 3, 3, 4, 3, 3, 2, 2, 3, 2, 2, 2, 4, 3, 3, 2, 2, 3, 2, 2, 1, 1, 2, 1, 1, 1, 3, 2, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 6, 5, 5, 4, 4, 5, 4, 4, 3, 3, 4, 3, 3, 3, 5, 4, 4, 3, 3, 4, 3, 3, 2, 2, 3, 2, 2, 2, 4, 3, 3, 2, 2, 3, 2, 2, 2, 3, 2, 2 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`This sequence is produced when the function 'length' (present in programming languages like Lisp, Scheme, Prolog and Haskell) acts on symbolless S-expressions encoded by A014486/A063171.`
	LINKS	`A. Karttunen, Gatomorphisms (Includes the complete Scheme program for computing this sequence)` `Index entries for the sequences induced by list functions of Lisp`
	CROSSREFS	`a(n) gives the first digit of A071153(n).` `Sequence in context: A035151 A136662 A023595 this_sequence A096852 A096857 A090000` `Adjacent sequences: A057512 A057513 A057514 this_sequence A057516 A057517 A057518`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (HisFirstname.HisSurname(AT)iki.fi) Sep 03 2000`

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Last modified December 6 19:58 EST 2009. Contains 170429 sequences.

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