a(n) = ceiling(n*phi^5), where phi is the golden ratio, A001622.

Terms

a(0) =0a(1) =12a(2) =23a(3) =34a(4) =45a(5) =56a(6) =67a(7) =78a(8) =89a(9) =100a(10) =111a(11) =122a(12) =134a(13) =145a(14) =156a(15) =167a(16) =178a(17) =189a(18) =200a(19) =211a(20) =222a(21) =233a(22) =244a(23) =256a(24) =267a(25) =278a(26) =289a(27) =300a(28) =311a(29) =322