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

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A340790 Pythagorean triples (X, Y, Z) that are the componentwise products of 2 primitive Pythagorean triples (x,y,z) and (r,s,t), that is, X=x*r, Y=y*s, ordered by increasing Z. 0
 1120, 5544, 5656, 5040, 5775, 7665, 935, 7920, 7975, 1716, 9360, 9516, 11700, 44880, 46380, 14040, 53856, 55656, 17325, 100320, 101805, 3315, 107712, 107763, 70560, 96525, 119565, 11088, 132825, 133287, 30240, 141284, 144484, 47424, 150480, 157776, 106227, 237120, 259827 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Lorenz Halbeisen and Norbert Hungerbühler, Pairing Pythagorean Pairs, arXiv:2101.08163 [math.NT], 2021. EXAMPLE [7, 24, 25] X [160, 231, 281] = [7*160, 24*25, 5656] = [1120, 5544, 5656]. CROSSREFS Cf. A020882, A046086, A046087. Sequence in context: A171004 A235275 A235314 * A237689 A032777 A234445 Adjacent sequences: A340787 A340788 A340789 * A340791 A340792 A340793 KEYWORD nonn,tabf AUTHOR Michel Marcus, Jan 21 2021 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 December 4 23:46 EST 2022. Contains 358572 sequences. (Running on oeis4.)