id:A160382 - OEIS Search Results

Search: id:A160382

Displaying 1-1 of 1 results found.

page 1

Number of 2's in base 4 representation of n.

+0
1

0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 1, 0, 0, 1, 0, 1, 1, 2, 1, 1, 1, 2, 1, 2, 2, 3, 2, 1, 1, 2, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 1, 0, 0, 1, 0, 1, 1, 2, 1, 1, 1, 2, 1, 2 (list; graph; listen)

	OFFSET	`0,11`
	FORMULA	`Recurrence relation: a(0) = 0, a(4m+2) = 1+a(m), a(4m) = a(4m+1) = a(4m+3) = a(m).` `Generating function: 1/(1-z) * SUM( z^(24^m)(1 - z^(4^m) )/( 1 - z^(4^(m+1)) ), m >= 0 ).` `Morphism: 0, j -> j,j,j+1,j; e.g., 0 -> 0010 -> 0010110111210010 -> ...`
	CROSSREFS	`Sequence in context: A116905 A115079 A025435 this_sequence A081221 A103840 A066301` `Adjacent sequences: A160379 A160380 A160381 this_sequence A160383 A160384 A160385`
	KEYWORD	`nonn`
	AUTHOR	`Frank Ruskey (ruskey(AT)cs.uvic.ca), Jun 05 2009`

page 1

Search completed in 0.002 seconds

Last modified December 1 13:27 EST 2009. Contains 167806 sequences.

AT&T Labs Research