id:A083932 - OEIS Search Results

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A014486-encoding of the Catalan mountain ranges with only even-length slopes allowed.

+0
4

0, 12, 204, 240, 3276, 3312, 3852, 3888, 4032, 52428, 52464, 53004, 53040, 53184, 61644, 61680, 62220, 62256, 62400, 64524, 64560, 64704, 65280, 838860, 838896, 839436, 839472, 839616, 848076, 848112, 848652, 848688, 848832, 850956, 850992 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Subset of totally balanced binary strings (A014486) with only even runs of either bit 0 or 1 occurring. See A083933.`
	LINKS	`Index entries for encodings of plane rooted trees`
	FORMULA	`a(n) = A008585(A083931(n)), i.e. 3*A083931(n).`
	CROSSREFS	`Same sequence in binary: A083933, indices to A014486: A083934.` `Permutation of A080316 from which this differs first time at the sixth term, with a(6)=3852, while A080316(6)=4032.` `Adjacent sequences: A083929 A083930 A083931 this_sequence A083933 A083934 A083935` `Sequence in context: A036240 A133242 A141836 this_sequence A080316 A108020 A097193`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (MyFirstname.MySurname(AT)iki.fi) May 13 2003`

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Last modified October 15 20:12 EDT 2008. Contains 145099 sequences.

AT&T Labs Research