Numbers k such that both k+1 and 7k+1 are squares.
A195917
Numbers k such that both k+1 and 7k+1 are squares.
Terms
- a(0) =0a(1) =24a(2) =120a(3) =6240a(4) =30624a(5) =1585080a(6) =7778520a(7) =402604224a(8) =1975713600a(9) =102259887960a(10) =501823476024
External references
- oeis: A195917