This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A098365 Sums of two squares and divisible by 17. 5
 17, 34, 68, 85, 136, 153, 170, 221, 272, 289, 306, 340, 425, 442, 493, 544, 578, 612, 629, 680, 697, 765, 833, 850, 884, 901, 986, 1037, 1088, 1105, 1156, 1224, 1241, 1258, 1360, 1377, 1394, 1445, 1513, 1530, 1649, 1666, 1700, 1717, 1768 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE Sums not divisible by 17 are indicated by asterisks: ....|...1....4....9...16....25....36....49....64....81...100...121 ------------------------------------------------------------------ 1...|...*....*....*...17.....*.....*.....*.....*.....*.....*.....* 4...|...*....*....*....*.....*.....*.....*....68....85.....*.....* 9...|...*....*....*....*....34.....*.....*.....*.....*.....*.....* 16..|..17....*....*....*.....*.....*.....*.....*.....*.....*.....* 25..|...*....*...34....*.....*.....*.....*.....*.....*.....*.....* 36..|...*....*....*....*.....*.....*....85.....*.....*...136.....* 49..|...*....*....*....*.....*....85.....*.....*.....*.....*...170 64..|...*...68....*....*.....*.....*.....*.....*.....*.....*.....* 81..|...*...85....*....*.....*.....*.....*.....*.....*.....*.....* 100.|...*....*....*....*.....*...136.....*.....*.....*.....*...221 121.|...*....*....*....*.....*.....*...170.....*.....*...221.....* MATHEMATICA ssq[upto_]:=Module[{max=Floor[Sqrt[upto]], seq}, seq=Select[Union[ Total/@Tuples[ Range[max]^2, {2}]], Divisible[#, 17]&]; Select[seq, #<=upto&]]; ssq[1800]  (* Harvey P. Dale, Mar 24 2011 *) CROSSREFS Sequence in context: A188290 A268287 A249988 * A033899 A110287 A102813 Adjacent sequences:  A098362 A098363 A098364 * A098366 A098367 A098368 KEYWORD nonn AUTHOR Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Oct 26 2004 STATUS approved

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

Last modified March 19 11:10 EDT 2019. Contains 321329 sequences. (Running on oeis4.)