a(n) = floor(n*phi^7), where phi is the golden ratio, A001622.

Terms

a(0) =0a(1) =29a(2) =58a(3) =87a(4) =116a(5) =145a(6) =174a(7) =203a(8) =232a(9) =261a(10) =290a(11) =319a(12) =348a(13) =377a(14) =406a(15) =435a(16) =464a(17) =493a(18) =522a(19) =551a(20) =580a(21) =609a(22) =638a(23) =667a(24) =696a(25) =725a(26) =754a(27) =783a(28) =812a(29) =841