id:A083938 - OEIS Search Results

Search: id:A083938

Displaying 1-1 of 1 results found.

page 1

A014486-indices of binary trees whose left and right subtree are identical.

+0
4

0, 1, 6, 42, 52, 385, 414, 477, 506, 555, 4089, 4180, 4388, 4479, 4645, 5095, 5186, 5394, 5485, 5651, 5969, 6060, 6226, 6502, 47363, 47661, 48366, 48664, 49237, 50800, 51098, 51803, 52101, 52674, 53808, 54106, 54679, 55681, 59311, 59609, 60314 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Fixed points of permutation A069770. Diagonal of A072764 (and A072766).`
	FORMULA	`a(0)=0, a(n)=A072764bi(n-1, n-1).`
	CROSSREFS	`a(n) = A080300(A083939(n)). Cf. A083940.` `Sequence in context: A117693 A153243 A097253 this_sequence A103763 A043896 A044489` `Adjacent sequences: A083935 A083936 A083937 this_sequence A083939 A083940 A083941`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (MyFirstname.MySurname(AT)iki.fi) May 13 2003`

page 1

Search completed in 0.002 seconds

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research