(A007318 * A133080 + A133080 * A007318) - A007318.

Terms

a(0) =1a(1) =3a(2) =1a(3) =3a(4) =2a(5) =1a(6) =5a(7) =5a(8) =5a(9) =1a(10) =5a(11) =4a(12) =10a(13) =4a(14) =1a(15) =7a(16) =9a(17) =26a(18) =14a(19) =7a(20) =1a(21) =7a(22) =6a(23) =35a(24) =20a(25) =21a(26) =6a(27) =1a(28) =9a(29) =13