id:A156913 - OEIS Search Results

Search: id:A156913

Displaying 1-1 of 1 results found.

page 1

Numbers n with property that A100486(n) is square.

+0
1

2, 4, 6, 11, 14, 21, 37, 75, 81, 176, 194, 310, 324, 332, 345, 399, 447, 612, 1122, 1209, 1614, 1874, 1921, 2186, 2329, 2482, 2509, 2874, 2940, 2975, 3230, 3611, 4185, 4650, 4923, 5172, 5248, 5543, 5587, 5673, 5714, 5764, 6038, 6078, 6250, 6430, 6976, 7023 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`For n<2*10^6 there are 411 such numbers.`
	FORMULA	`pi(n) + n-th prime = square`
	EXAMPLE	`n=2 pi(2)+p(2)=2+2=4, n=4 pi(4)+p(4)=2+7=9, n=6 pi(6)+p(6)=3+13=16, etc.`
	CROSSREFS	`A100486.` `Sequence in context: A136969 A068059 A108868 this_sequence A138461 A103580 A094866` `Adjacent sequences: A156910 A156911 A156912 this_sequence A156914 A156915 A156916`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Feb 18 2009`

page 1

Search completed in 0.002 seconds

Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

AT&T Labs Research