Numerators of continued fraction convergents to sqrt(561).

Terms

a(0) =23a(1) =24a(2) =71a(3) =379a(4) =450a(5) =829a(6) =2108a(7) =5045a(8) =12198a(9) =17243a(10) =29441a(11) =164448a(12) =358337a(13) =522785a(14) =24406447a(15) =24929232a(16) =74264911a(17) =396253787a(18) =470518698a(19) =866772485a(20) =2204063668a(21) =5274899821a(22) =12753863310a(23) =18028763131