Reflected (see A074058) pentanacci numbers A074048.

Terms

a(0) =5a(1) =-1a(2) =-1a(3) =-1a(4) =-1a(5) =9a(6) =-7a(7) =-1a(8) =-1a(9) =-1a(10) =19a(11) =-23a(12) =5a(13) =-1a(14) =-1a(15) =39a(16) =-65a(17) =33a(18) =-7a(19) =-1a(20) =79a(21) =-169a(22) =131a(23) =-47a(24) =5a(25) =159a(26) =-417a(27) =431a(28) =-225a(29) =57