Fibonacci sequence beginning 0, 28.

Terms

a(0) =0a(1) =28a(2) =28a(3) =56a(4) =84a(5) =140a(6) =224a(7) =364a(8) =588a(9) =952a(10) =1540a(11) =2492a(12) =4032a(13) =6524a(14) =10556a(15) =17080a(16) =27636a(17) =44716a(18) =72352a(19) =117068a(20) =189420a(21) =306488a(22) =495908a(23) =802396a(24) =1298304a(25) =2100700a(26) =3399004a(27) =5499704a(28) =8898708a(29) =14398412