a(n) = [ a(n-1)/a(1) + a(n-3)/a(3) + a(n-5)/a(5) + ... ], for n >= 3.

Terms

a(0) =1a(1) =2a(2) =2a(3) =2a(4) =3a(5) =4a(6) =5a(7) =7a(8) =10a(9) =14a(10) =19a(11) =26a(12) =36a(13) =50a(14) =69a(15) =96a(16) =133a(17) =184a(18) =255a(19) =354a(20) =491a(21) =681a(22) =945a(23) =1311a(24) =1819a(25) =2524a(26) =3502a(27) =4859a(28) =6742a(29) =9355