Numbers of the form x^2 + y^2 with x >= 0, y >= 0, gcd(x,y)=1, with multiplicity.

Terms

a(0) =1a(1) =2a(2) =5a(3) =10a(4) =13a(5) =17a(6) =25a(7) =26a(8) =29a(9) =34a(10) =37a(11) =41a(12) =50a(13) =53a(14) =58a(15) =61a(16) =65a(17) =65a(18) =73a(19) =74a(20) =82a(21) =85a(22) =85a(23) =89a(24) =97a(25) =101a(26) =106a(27) =109a(28) =113a(29) =122