Numbers k such that 5*k^2 - 9 is a square.
A075869
Numbers k such that 5*k^2 - 9 is a square.
Terms
- a(0) =3a(1) =51a(2) =915a(3) =16419a(4) =294627a(5) =5286867a(6) =94868979a(7) =1702354755a(8) =30547516611a(9) =548152944243
External references
- oeis: A075869