a(n) = n*n in the arithmetic where when digits are to be added they are multiplied, and when they are to be multiplied they are added.
A169921
a(n) = n*n in the arithmetic where when digits are to be added they are multiplied, and when they are to be multiplied they are added.
Terms
- a(0) =0a(1) =2a(2) =4a(3) =6a(4) =8a(5) =10a(6) =12a(7) =14a(8) =16a(9) =18a(10) =210a(11) =242a(12) =294a(13) =366a(14) =458a(15) =620a(16) =762a(17) =924a(18) =2906a(19) =3018a(20) =440a(21) =492a(22) =564a(23) =656a(24) =768a(25) =960a(26) =1122a(27) =4904a(28) =5016a(29) =5128
External references
- oeis: A169921