id:A154475 - OEIS Search Results

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Number of opening (equally: closing) brackets in each term of Wolfram's Symbolic Rewriting system A154473-A154474.

+0
3

5, 7, 7, 8, 8, 14, 19, 24, 28, 31, 36, 42, 45, 47, 49, 50, 50, 50, 51, 51, 51, 54, 55, 55, 55, 56, 56, 56, 58, 60, 61, 61, 61, 62, 62, 62, 65, 66, 66, 66, 67, 67, 67, 70, 72, 74, 75, 75, 75, 76, 76, 76, 79, 80, 80, 80, 81, 81, 81, 83, 85, 86, 86, 86, 87, 87, 87, 92, 93, 93 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`2*a(n) gives the number of bits in A154474(n).`
	LINKS	`A. Karttunen, Table of n, a(n) for n = 0..100` `S. Wolfram, A New Kind of Science, Wolfram Media Inc., (2002), p. 102, p. 103 and pages 104, 896-898.`
	FORMULA	`a(n) = A072643(A154472(n)).`
	EXAMPLE	`The iteration starts from the initial term e[e[e][e]][e][e], which contains 5 ['s (and also 5 ]'s), thus a(0)=5.`
	CROSSREFS	`a(n) = A029837(1+A154473(n))/2. a(n) = A154476(n)-1.` `Sequence in context: A114916 A001989 A086056 this_sequence A137755 A053672 A087525` `Adjacent sequences: A154472 A154473 A154474 this_sequence A154476 A154477 A154478`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (His-Firstname.His-Surname(AT)gmail.com), Jan 11 2009`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

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