a(n) = ceiling(A293160(n)/2).

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =7a(6) =10a(7) =16a(8) =24a(9) =39a(10) =59a(11) =96a(12) =150a(13) =233a(14) =367a(15) =588a(16) =925a(17) =1463a(18) =2299a(19) =3648a(20) =5776a(21) =9139a(22) =14432a(23) =22916a(24) =36178a(25) =57371