OFFSET
1,1
COMMENTS
Nakao's table has more entries because he lists nonprimitive numbers if they are the sum of two cubes in three ways.
Rajesh Bhowmick, Dec 12 2011: The odd number 40533595075161 can be represented as sum of two cubes in just two different ways: (34314)^(3)+(5073)^(3) = (34321)^(3)+(4730)^(3). Here, the cubes are greater than 1, there is no common factor between the odd numbers, there is no common factor between the L.H.S & the R.H.S, the even number is greater than 2, the cubes are in their primitive form, and they are not of the form (27)^(3) or (121)^(3) (which are actually (3)^(9) & (11)^(6)).
LINKS
Shahar Amitai, Table of n, a(n) for n = 1..9859 (terms a(1)-a(1694) from T. D. Noe).
H. Nakao, Ramanujan Taxi Numbers [1...1000000000]
Eric Weisstein's World of Mathematics, Cubic Number
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved