The convergent sequence A_n for the ternary continued fraction (3,1;2,2) of period 2.

Terms

a(0) =1a(1) =0a(2) =0a(3) =1a(4) =2a(5) =5a(6) =15a(7) =32a(8) =99a(9) =210a(10) =650a(11) =1379a(12) =4268a(13) =9055a(14) =28025a(15) =59458a(16) =184021a(17) =390420a(18) =1208340a(19) =2563621a(20) =7934342a(21) =16833545a(22) =52099395a(23) =110534372a(24) =342101079a(25) =725803590a(26) =2246343710a(27) =4765855559a(28) =14750202128a(29) =31294112515