Smallest k such that 1, 4, 9, ..., n^2 are distinct mod k.

Terms

a(0) =1a(1) =2a(2) =6a(3) =9a(4) =10a(5) =13a(6) =14a(7) =17a(8) =19a(9) =22a(10) =22a(11) =26a(12) =26a(13) =29a(14) =31a(15) =34a(16) =34a(17) =37a(18) =38a(19) =41a(20) =43a(21) =46a(22) =46a(23) =53a(24) =53a(25) =53a(26) =58a(27) =58a(28) =58a(29) =61