Next n digits of sqrt(2).

Terms

a(0) =1a(1) =41a(2) =421a(3) =3562a(4) =37309a(5) =504880a(6) =1688724a(7) =20969807a(8) =856967187a(9) =5376948073a(10) =17667973799a(11) =73247846210