The first of 50 consecutive positive integers the sum of the squares of which is a square.

Terms

a(0) =7a(1) =28a(2) =44a(3) =67a(4) =87a(5) =124a(6) =168a(7) =287a(8) =379a(9) =512a(10) =628a(11) =843a(12) =1099a(13) =1792a(14) =2328a(15) =3103a(16) =3779a(17) =5032a(18) =6524a(19) =10563a(20) =13687a(21) =18204a(22) =22144a(23) =29447a(24) =38143a(25) =61684a(26) =79892a(27) =106219a(28) =129183a(29) =171748