

A273354


Least number that is the sum of 2 positive cubes in exactly n ways and also the sum of 2 positive squares in exactly n ways.


0




OFFSET

1,1


COMMENTS

4624776 is the first term of A272701.
A011541(k) is not the sum of two nonzero squares for 2 <= k <= 6.
If it exists, what is the a(3)?


LINKS

Table of n, a(n) for n=1..2.


EXAMPLE

a(1) = 2 because 2 = 1^3 + 1^3 = 1^2 + 1^2.
a(2) = 4624776 because 4624776 = 51^3 + 165^3 = 72^3 + 162^3 = 1026^2 + 1890^2 = 1350^2 + 1674^2.


CROSSREFS

Cf. A001235, A011541, A016032, A272701.
Sequence in context: A137601 A232962 A158347 * A157991 A233555 A273729
Adjacent sequences: A273351 A273352 A273353 * A273355 A273356 A273357


KEYWORD

nonn,hard,less,more,bref


AUTHOR

Altug Alkan, May 20 2016


STATUS

approved



