id:A109964 - OEIS Search Results

Search: id:A109964

Displaying 1-1 of 1 results found.

page 1

Floor[sqrt(sum_i {i<n} a(i))] with a(0)=1.

+0
2

1, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31, 32, 32, 32, 33, 33, 34, 34, 35, 35 (list; graph; listen)

	OFFSET	`0,5`
	FORMULA	`a(n) =floor(sqrt(A109965(n)) =A109965(n+1)-A109965(n). Roughly (n-log2(n))/2. 1 appears four times, other powers of 2 appear three times, other numbers appear twice.`
	EXAMPLE	`a(5) =floor[sqrt(1+1+1+1+2)] =floor[sqrt(8)] =2.`
	CROSSREFS	`Sequence in context: A100719 A057354 A097508 this_sequence A025778 A078451 A071824` `Adjacent sequences: A109961 A109962 A109963 this_sequence A109965 A109966 A109967`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Jul 06 2005`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research