a(n) = a(n-2) + a(n-5).

Terms

a(0) =0a(1) =1a(2) =0a(3) =1a(4) =0a(5) =1a(6) =1a(7) =1a(8) =2a(9) =1a(10) =3a(11) =2a(12) =4a(13) =4a(14) =5a(15) =7a(16) =7a(17) =11a(18) =11a(19) =16a(20) =18a(21) =23a(22) =29a(23) =34a(24) =45a(25) =52a(26) =68a(27) =81a(28) =102a(29) =126