Numbers k such that if x = sigma(k) + tau(k) - k then k = sigma(x) + tau(x) - x.

Terms

a(0) =1a(1) =3a(2) =14a(3) =52a(4) =130a(5) =144a(6) =184a(7) =274a(8) =300a(9) =586a(10) =656a(11) =8648a(12) =10434a(13) =11470a(14) =12008a(15) =15774a(16) =17034a(17) =18802a(18) =19270a(19) =21032a(20) =22088a(21) =22184a(22) =23288a(23) =34688a(24) =35394a(25) =36872a(26) =38744a(27) =39790a(28) =65324a(29) =65392