Squares that can be written as a sum of 3 distinct nonzero squares in exactly two ways.

A207640

Squares that can be written as a sum of 3 distinct nonzero squares in exactly two ways.

Terms

    a(0) =225a(1) =361a(2) =625a(3) =900a(4) =1444a(5) =2500a(6) =3600a(7) =5776a(8) =10000a(9) =14400a(10) =23104a(11) =40000a(12) =57600a(13) =92416a(14) =160000a(15) =230400a(16) =369664a(17) =640000a(18) =921600a(19) =1478656a(20) =2560000a(21) =3686400

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