Number of squarefree odd numbers k > 1 less than 10^n such that k is a sum of two squares.
A275649
Number of squarefree odd numbers k > 1 less than 10^n such that k is a sum of two squares.
Terms
- a(0) =2a(1) =14a(2) =112a(3) =997a(4) =8982a(5) =82305a(6) =764092a(7) =7159654a(8) =67581778a(9) =641696858a(10) =6122456540a(11) =58649349611a(12) =563729377405
External references
- oeis: A275649