a(n) = a(n-2) + 2*a(n-4) - a(n-10), with a[0..9] = [1, 1, 1, 1, 1, 2, 3, 5, 6, 9].

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =3a(7) =5a(8) =6a(9) =9a(10) =11a(11) =18a(12) =22a(13) =35a(14) =43a(15) =69a(16) =84a(17) =134a(18) =164a(19) =263a(20) =321a(21) =513a(22) =627a(23) =1004a(24) =1226a(25) =1961a(26) =2396a(27) =3835a(28) =4684a(29) =7494