a(n) is the minimal values of A007947((2^n)*m*(2^n-m)).

Terms

a(0) =2a(1) =6a(2) =14a(3) =30a(4) =30a(5) =42a(6) =30a(7) =78a(8) =182a(9) =1110a(10) =570a(11) =1830a(12) =6666a(13) =2310a(14) =2534a(15) =5538a(16) =9870a(17) =20010a(18) =141270a(19) =14070a(20) =480090a(21) =155490a(22) =334110a(23) =1794858a(24) =2463270a(25) =2132130a(26) =2349390