Denominators of continued fraction convergents to sqrt(10)/2 = sqrt(5/2) = A020797 + 1.

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =7a(5) =12a(6) =31a(7) =43a(8) =74a(9) =191a(10) =265a(11) =456a(12) =1177a(13) =1633a(14) =2810a(15) =7253a(16) =10063a(17) =17316a(18) =44695a(19) =62011a(20) =106706a(21) =275423a(22) =382129a(23) =657552a(24) =1697233a(25) =2354785a(26) =4052018a(27) =10458821a(28) =14510839a(29) =24969660