Numerators of partial sums of a series for 1/sqrt(2).

Terms

a(0) =1a(1) =1a(2) =7a(3) =9a(4) =107a(5) =151a(6) =835a(7) =1241a(8) =26291a(9) =40427a(10) =207897a(11) =327615a(12) =3296959a(13) =5293843a(14) =26189947a(15) =42685049a(16) =1666461763a(17) =2749521971a(18) =13266871709a(19) =22115585443a(20) =211386315749a(21) =355490397193