Least k for the inner Theodorus spiral to complete n revolutions.

Terms

a(0) =15a(1) =52a(2) =108a(3) =184a(4) =279a(5) =394a(6) =530a(7) =684a(8) =859a(9) =1053a(10) =1267a(11) =1501a(12) =1755a(13) =2028a(14) =2321a(15) =2634a(16) =2966a(17) =3318a(18) =3690a(19) =4082a(20) =4493a(21) =4925a(22) =5375a(23) =5846a(24) =6336a(25) =6847a(26) =7376a(27) =7926a(28) =8495a(29) =9085