Least nonsquare whose remainder modulo k^2 is a square for all 0 < k <= n.

A081650

Least nonsquare whose remainder modulo k^2 is a square for all 0 < k <= n.

Terms

    a(0) =2a(1) =5a(2) =13a(3) =73a(4) =409a(5) =801a(6) =1584a(7) =2241a(8) =30601a(9) =30601a(10) =78409a(11) =156825a(12) =862416a(13) =862416a(14) =7929009a(15) =28173825a(16) =196668004a(17) =196668004a(18) =1782335025a(19) =1782335025a(20) =1782335025a(21) =171276483609

External references