Least k for the Theodorus spiral to complete n revolutions.

Terms

a(0) =17a(1) =54a(2) =110a(3) =186a(4) =281a(5) =396a(6) =532a(7) =686a(8) =861a(9) =1055a(10) =1269a(11) =1503a(12) =1757a(13) =2030a(14) =2323a(15) =2636a(16) =2968a(17) =3320a(18) =3692a(19) =4084a(20) =4495a(21) =4927a(22) =5377a(23) =5848a(24) =6338a(25) =6849a(26) =7378a(27) =7928a(28) =8497a(29) =9087