Sum of numerators of Farey Sequence of order n.

Terms

a(0) =1a(1) =2a(2) =5a(3) =9a(4) =19a(5) =25a(6) =46a(7) =62a(8) =89a(9) =109a(10) =164a(11) =188a(12) =266a(13) =308a(14) =368a(15) =432a(16) =568a(17) =622a(18) =793a(19) =873a(20) =999a(21) =1109a(22) =1362a(23) =1458a(24) =1708a(25) =1864a(26) =2107a(27) =2275a(28) =2681a(29) =2801