Least number k such that k^2-1 is the sum of two nonzero squares in exactly n ways.
A274567
Least number k such that k^2-1 is the sum of two nonzero squares in exactly n ways.
Terms
- a(0) =3a(1) =81a(2) =51a(3) =291a(4) =1251a(5) =339a(6) =62499a(7) =1971a(8) =5201a(9) =5001a(10) =175781251a(11) =7299a(12) =17578125001a(13) =31251a(14) =66249a(15) =12819
External references
- oeis: A274567