Numbers n such that sigma(sigma(n))/sigma(n) > sigma(sigma(m))/sigma(m) for all m < n.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =6a(5) =14a(6) =22a(7) =24a(8) =54a(9) =88a(10) =114a(11) =120a(12) =264a(13) =312a(14) =520a(15) =540a(16) =864a(17) =1560a(18) =3432a(19) =4320a(20) =8856a(21) =9120a(22) =10464a(23) =20664a(24) =21276a(25) =32760a(26) =36840a(27) =52320a(28) =92280a(29) =106380