Numbers X such that X^2 + Y^2 = 10^(2*k) + 1, with X > Y > 0 and k is the decimal digit length of X-1.
A368418
Numbers X such that X^2 + Y^2 = 10^(2*k) + 1, with X > Y > 0 and k is the decimal digit length of X-1.
Terms
- a(0) =10a(1) =76a(2) =100a(3) =980a(4) =1000a(5) =8824a(6) =10000a(7) =76249a(8) =87551a(9) =98020a(10) =100000a(11) =753424a(12) =766424a(13) =999800a(14) =1000000a(15) =7209049a(16) =7241380a(17) =8220640a(18) =8463640a(19) =9801980a(20) =9879740a(21) =9990280a(22) =10000000a(23) =77053825a(24) =78173720a(25) =80404255a(26) =83754376a(27) =84711551a(28) =86600176a(29) =90880001
External references
- oeis: A368418