a(n) = T(n,n-6), array T as in A055801.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =8a(7) =13a(8) =21a(9) =33a(10) =53a(11) =79a(12) =125a(13) =176a(14) =273a(15) =365a(16) =554a(17) =709a(18) =1053a(19) =1300a(20) =1891a(21) =2267a(22) =3234a(23) =3785a(24) =5303a(25) =6085a(26) =8385a(27) =9465a(28) =12845a(29) =14302