Squares for which the sum of the digits, the product of the digits, the digital root and the multiplicative digital root are all squares.

A117680

Squares for which the sum of the digits, the product of the digits, the digital root and the multiplicative digital root are all squares.

Terms

    a(0) =1a(1) =4a(2) =9a(3) =100a(4) =400a(5) =900a(6) =2304a(7) =2601a(8) =3600a(9) =10000a(10) =10201a(11) =10404a(12) =11025a(13) =12100a(14) =14400a(15) =22500a(16) =32400a(17) =40000a(18) =40401a(19) =44100a(20) =62001a(21) =90000a(22) =101124a(23) =103041a(24) =121104a(25) =123201a(26) =152100a(27) =199809a(28) =202500a(29) =230400

External references