Smaller of a non-unitary amicable pair.

Terms

a(0) =48a(1) =192a(2) =252a(3) =448a(4) =768a(5) =1792a(6) =3240a(7) =7936a(8) =11616a(9) =11808a(10) =49152a(11) =114688a(12) =507904a(13) =786432a(14) =1835008a(15) =2080768a(16) =3145728a(17) =7340032a(18) =8126464a(19) =32505856a(20) =33292288a(21) =133169152a(22) =2147221504a(23) =8588886016