Convolution of A000201 and A023533.

Terms

a(0) =1a(1) =3a(2) =4a(3) =7a(4) =11a(5) =13a(6) =17a(7) =20a(8) =23a(9) =28a(10) =32a(11) =37a(12) =43a(13) =47a(14) =52a(15) =57a(16) =61a(17) =67a(18) =71a(19) =77a(20) =84a(21) =90a(22) =97a(23) =103a(24) =109a(25) =117a(26) =122a(27) =129a(28) =136a(29) =141