Least number with exactly n prime factors counted with multiplicity which gives a different number with exactly n prime factors counted with multiplicity when digits are reversed.

A109018

Least number with exactly n prime factors counted with multiplicity which gives a different number with exactly n prime factors counted with multiplicity when digits are reversed.

Terms

    a(0) =13a(1) =15a(2) =117a(3) =126a(4) =270a(5) =2576a(6) =8820a(7) =16560a(8) =21168a(9) =46848a(10) =295245a(11) =441600a(12) =846720a(13) =4078080a(14) =80663040a(15) =40590720a(16) =2173236480a(17) =4011724800a(18) =21122906112a(19) =40915058688a(20) =274148425728a(21) =63769149440

External references