Squarefree integers m such that the fundamental unit of Q(sqrt(m)) has norm -1. Also, squarefree integers m such that the Pell equation x^2 - m*y^2 = -1 is soluble.
A003654
Squarefree integers m such that the fundamental unit of Q(sqrt(m)) has norm -1. Also, squarefree integers m such that the Pell equation x^2 - m*y^2 = -1 is soluble.
Terms
- a(0) =2a(1) =5a(2) =10a(3) =13a(4) =17a(5) =26a(6) =29a(7) =37a(8) =41a(9) =53a(10) =58a(11) =61a(12) =65a(13) =73a(14) =74a(15) =82a(16) =85a(17) =89a(18) =97a(19) =101a(20) =106a(21) =109a(22) =113a(23) =122a(24) =130a(25) =137a(26) =145a(27) =149a(28) =157a(29) =170
External references
- oeis: A003654