a(n+1) = a(n) - F(n) if > 0, otherwise a(n) + F(n), where F() are Fibonacci numbers; a(0) = 0.

Terms

a(0) =0a(1) =0a(2) =1a(3) =2a(4) =4a(5) =1a(6) =6a(7) =14a(8) =1a(9) =22a(10) =56a(11) =1a(12) =90a(13) =234a(14) =1a(15) =378a(16) =988a(17) =1a(18) =1598a(19) =4182a(20) =1a(21) =6766a(22) =17712a(23) =1a(24) =28658a(25) =75026a(26) =1a(27) =121394a(28) =317812a(29) =1