Numerators in continued fraction [0; 1, 3, 1, 3, 1, 3, ...].

Terms

a(0) =1a(1) =3a(2) =4a(3) =15a(4) =19a(5) =72a(6) =91a(7) =345a(8) =436a(9) =1653a(10) =2089a(11) =7920a(12) =10009a(13) =37947a(14) =47956a(15) =181815a(16) =229771a(17) =871128a(18) =1100899a(19) =4173825a(20) =5274724a(21) =19997997a(22) =25272721a(23) =95816160a(24) =121088881a(25) =459082803a(26) =580171684a(27) =2199597855a(28) =2779769539a(29) =10538906472