Fixed points of the Kaprekar mapping f(n) = n' - n'', where in n' the digits of n are arranged in descending, in n'' in ascending order.

A099009

Fixed points of the Kaprekar mapping f(n) = n' - n'', where in n' the digits of n are arranged in descending, in n'' in ascending order.

Terms

    a(0) =0a(1) =495a(2) =6174a(3) =549945a(4) =631764a(5) =63317664a(6) =97508421a(7) =554999445a(8) =864197532a(9) =6333176664a(10) =9753086421a(11) =9975084201a(12) =86431976532a(13) =555499994445a(14) =633331766664a(15) =975330866421a(16) =997530864201a(17) =999750842001

External references