Taxicab numbers that are sandwiched between semiprimes.

Terms

a(0) =4104a(1) =171288a(2) =1728216a(3) =2864288a(4) =2987712a(5) =2991816a(6) =3512808a(7) =3551112a(8) =9016488a(9) =10424232a(10) =12753160a(11) =13825728a(12) =14197248a(13) =36047592a(14) =43450344a(15) =43699392a(16) =49844032a(17) =63057960a(18) =72131904a(19) =75550088a(20) =85188096a(21) =92384712a(22) =107872128a(23) =107919000a(24) =110808000a(25) =117258678a(26) =119824488a(27) =132678000