Larger of bi-unitary amicable pair.

Terms

a(0) =126a(1) =846a(2) =1260a(3) =3952a(4) =5382a(5) =8460a(6) =6368a(7) =8496a(8) =13808a(9) =10856a(10) =14595a(11) =17700a(12) =51952a(13) =49308a(14) =53820a(15) =83142a(16) =62700a(17) =71145a(18) =73962a(19) =97712a(20) =107550a(21) =88730a(22) =108224a(23) =131100a(24) =153176a(25) =168730a(26) =196650a(27) =203432a(28) =195408a(29) =287600