1,2

The values of minimal k in A077060 and A077061. The values of corresponding c in A077062.

Table of n, a(n) for n=1..58.

j is in this sequence if for some integer k > j, j^2 + k^2 = c^3.

2 is in the sequence because 2^2 + 11^2 = 5^3;

7 is in the sequence because 7^2 + 524^2 = 65^3;

1 is not in the sequence because 1^2 + k^2 is not a cube for any k > 1;

3 is not in the sequence because 3^2 + k^2 is not a cube for any k > 3.

Cf. A076600, A077059-A077062.

Sequence in context: A047482 A174272 A062288 * A260166 A007300 A256699

Adjacent sequences: A077056 A077057 A077058 * A077060 A077061 A077062

nonn

Zak Seidov, Oct 23 2002, Jan 02 2008

Corrected and extended by Max Alekseyev, Dec 14 2011

approved