a(0)=a(1)=1, a(n+2) = a(n+1) + a(n) - A128834(n).

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =3a(5) =5a(6) =9a(7) =15a(8) =24a(9) =38a(10) =61a(11) =99a(12) =161a(13) =261a(14) =422a(15) =682a(16) =1103a(17) =1785a(18) =2889a(19) =4675a(20) =7564a(21) =12238a(22) =19801a(23) =32039a(24) =51841a(25) =83881a(26) =135722a(27) =219602a(28) =355323a(29) =574925