The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A248408 Values of y in A142508(n) = x^2+13y^2. 0
 2, 1, 3, 5, 2, 4, 6, 9, 10, 1, 12, 10, 7, 7, 13, 13, 14, 2, 15, 16, 8, 13, 16, 5, 7, 19, 7, 11, 2, 6, 4, 13, 6, 8, 22, 21, 10, 21, 24, 10, 17, 20, 25, 3, 7, 22, 19, 16, 26, 21, 11, 18, 28, 18, 23, 26, 30, 10, 29, 31, 31, 28, 32, 24, 1, 24, 5, 21, 5, 7, 26, 18, 29, 11, 33, 20, 32, 35, 15, 28, 2, 22 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..82. EXAMPLE a(1)=2 because A142508(1)=53=1^2+13*2^2 (x=1,y=2); a(2)=1 because A142508(2)=157=12^2+13*1^2 (x=12, y=1). CROSSREFS Cf. A033210, A142508, A248221, A248019(values of x). Sequence in context: A066748 A106583 A081450 * A210880 A210867 A019588 Adjacent sequences: A248405 A248406 A248407 * A248409 A248410 A248411 KEYWORD nonn AUTHOR Zak Seidov, Oct 06 2014 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified February 25 05:14 EST 2024. Contains 370310 sequences. (Running on oeis4.)