A087210 Numbers n such that n^2 can be expressed as x^3 + y^4 with positive integers x,y and gcd(n,x,y)=1.

3, 29, 76, 397, 143027, 175784, 298483, 648613, 4146689, 4308693, 7079295, 8288063, 8893220, 22015007, 30042907, 54142096, 101907569, 109233295, 395856397, 444716637, 474554340, 579133627, 655054991, 949475843, 1036435896

Offset

1,1

Links

Table of n, a(n) for n=1..25.

Dario Alpern, Sum of powers, Sum of powers 432.

Example

a(2)=29 because 29^2=6^3+5^4.

Crossrefs

Cf. A087209.

Sequence in context: A296246 A257293 A221745 * A288918 A190942 A106943

Adjacent sequences: A087207 A087208 A087209 * A087211 A087212 A087213

Keyword

nonn,more

Author

Hugo Pfoertner, Aug 26 2003

Extensions

More terms from Hugo Pfoertner, Sep 15 2003

Status

approved