a(n) is the smallest nonnegative integer k where there are exactly n nonnegative integer solutions to x^2 + 3*y^2 = k.
A374286
a(n) is the smallest nonnegative integer k where there are exactly n nonnegative integer solutions to x^2 + 3*y^2 = k.
Terms
- a(0) =2a(1) =0a(2) =4a(3) =28a(4) =1729a(5) =196a(6) =364a(7) =1529437a(8) =9604a(9) =2548a(10) =593047a(11) =470596a(12) =6916a(13) =68574961a(14) =33124a(15) =124852a(16) =1983163
External references
- oeis: A374286