a(n) = T(n,n-5), array T as in A055801.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =8a(7) =13a(8) =20a(9) =32a(10) =46a(11) =72a(12) =97a(13) =148a(14) =189a(15) =281a(16) =344a(17) =499a(18) =591a(19) =838a(20) =967a(21) =1343a(22) =1518a(23) =2069a(24) =2300a(25) =3082a(26) =3380a(27) =4460a(28) =4837a(29) =6294