Denominators of A178381(4*n+3)/A178381(4*n+2).

Terms

a(0) =2a(1) =4a(2) =5a(3) =26a(4) =68a(5) =89a(6) =466a(7) =1220a(8) =1597a(9) =8362a(10) =21892a(11) =28657a(12) =150050a(13) =392836a(14) =514229a(15) =2692538a(16) =7049156a(17) =9227465a(18) =48315634a(19) =126491972a(20) =165580141a(21) =866988874a(22) =2269806340a(23) =2971215073a(24) =15557484098a(25) =40730022148a(26) =53316291173a(27) =279167724890