a(n) = floor(tau*a(n-1)) + a(n-2) with a(0)=0 and a(1)=1.

Terms

a(0) =0a(1) =1a(2) =1a(3) =2a(4) =4a(5) =8a(6) =16a(7) =33a(8) =69a(9) =144a(10) =301a(11) =631a(12) =1321a(13) =2768a(14) =5799a(15) =12150a(16) =25458a(17) =53341a(18) =111765a(19) =234180a(20) =490676a(21) =1028110a(22) =2154192a(23) =4513665a(24) =9457455a(25) =19816148a(26) =41520655a(27) =86997979a(28) =182286341a(29) =381943474