a(n) = A255978(n) + 1.

Terms

a(0) =1a(1) =2a(2) =2a(3) =5a(4) =6a(5) =10a(6) =17a(7) =26a(8) =42a(9) =69a(10) =110a(11) =178a(12) =289a(13) =466a(14) =754a(15) =1221a(16) =1974a(17) =3194a(18) =5169a(19) =8362a(20) =13530a(21) =21893a(22) =35422a(23) =57314a(24) =92737a(25) =150050a(26) =242786a(27) =392837a(28) =635622a(29) =1028458