Union of A080105 and A080106.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =8a(8) =10a(9) =13a(10) =16a(11) =20a(12) =27a(13) =33a(14) =43a(15) =53a(16) =70a(17) =86a(18) =113a(19) =140a(20) =183a(21) =226a(22) =296a(23) =366a(24) =479a(25) =592a(26) =775a(27) =957a(28) =1253a(29) =1549