id:A120738 - OEIS Search Results

Search: id:A120738

Displaying 1-1 of 1 results found.

page 1

A120738

a(n)=log2(16^n/A001316(n)).

+0
1

0, 3, 7, 10, 15, 18, 22, 25, 31, 34, 38, 41, 46, 49, 53, 56, 63, 66, 70, 73, 78, 81, 85, 88, 94, 97, 101, 104, 109, 112, 116, 119, 127, 130, 134, 137, 142, 145, 149, 152, 158, 161, 165, 168, 173, 176, 180, 183, 190, 193, 197, 200, 205, 208, 212, 215, 221, 224, 228 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Partial sums of A090739. 2^a(n)=16^n/A001316(n)=A061549(n).`
	FORMULA	`a(n)=2n+A005187(n); a(n)=3n+A011371(n); a(n)=4n-log2(A001316(n)); a(n)=log2(A061549(n));`
	PROGRAM	`(PARI) {a(n) = if( n < 0, 0, 4n - subst( Pol( binary( n ) ), x, 1) ) } / Michael Somos Aug 28 2007 */`
	CROSSREFS	`Sequence in context: A003231 A140487 A043722 this_sequence A085145 A121016 A088636` `Adjacent sequences: A120735 A120736 A120737 this_sequence A120739 A120740 A120741`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jun 29 2006`

page 1

Search completed in 0.002 seconds

Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

AT&T Labs Research