Total number of parts in all partitions of n into relatively prime parts.

Terms

a(0) =1a(1) =2a(2) =5a(3) =9a(4) =19a(5) =27a(6) =53a(7) =74a(8) =122a(9) =170a(10) =274a(11) =355a(12) =555a(13) =724a(14) =1043a(15) =1377a(16) =1964a(17) =2487a(18) =3497a(19) =4429a(20) =5993a(21) =7622a(22) =10205a(23) =12701a(24) =16831a(25) =20964a(26) =27166a(27) =33756a(28) =43452a(29) =53296