Numerators of partial sums of a series for sqrt(5).

Terms

a(0) =1a(1) =7a(2) =41a(3) =9a(4) =239a(5) =6227a(6) =32059a(7) =163727a(8) =166301a(9) =841229a(10) =21215481a(11) =106782837a(12) =536618341a(13) =538698461a(14) =172897a(15) =13538601629a(16) =67813224223a(17) =339532842359a(18) =339895847771