4511808domain: NAppears in sequencesTaxi-cab numbers (A001235) that are the sum of three positive cubes.at n=17A273219O.g.f. A(x) satisfies: [x^n] exp( n*(n+1) * A(x) ) = n*(n+1) * [x^(n-1)] exp( n*(n+1) * A(x) ) for n>=1.at n=5A300871Taxicab numbers that are sandwiched between squarefree numbers.at n=31A371602