a(0)=a(1)=1. a(n) = the multiple of n which is >= a(n-1)+a(n-2) and is < a(n-1)+a(n-2)+n.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =8a(5) =15a(6) =24a(7) =42a(8) =72a(9) =117a(10) =190a(11) =308a(12) =504a(13) =819a(14) =1330a(15) =2160a(16) =3504a(17) =5678a(18) =9198a(19) =14877a(20) =24080a(21) =38976a(22) =63074a(23) =102051a(24) =165144a(25) =267200a(26) =432354a(27) =699570a(28) =1131928a(29) =1831524