1. S1: There is a touching story of Professor Hardy visiting Ramanujan as he lay desperately ill in hospital at Putney. P : 'No Hardy, that is not a dull number in the very least. Q : Hardy, who was a very shy man, could not find the words for his distress. R : It was 1729. S : The best he could do, as he got to the beside was "I say Ramanujan, I thought the number of taxi I came down in was a very dull number" S6: It is the lowest number that can be expressed in two different ways as the sum of two cubes. The Proper sequence should be: