A355491 Numbers of the form a+b+c = a^3 - b^3 - c^3 where a > b >= c > 0.

10, 35, 54, 64, 199, 235, 279, 747, 1224, 1610, 1774, 6156, 8254, 11035, 12024, 16875, 56439, 66340, 75635, 82279, 115712, 134045, 136765, 150480, 175616, 212266, 255277, 299789, 339759, 386704, 518410, 563814, 643824, 1025776, 1429190, 1431233, 1468846, 1598374

Offset

1,1

Links

Table of n, a(n) for n=1..38.

Example

10 is a term: 10 = 4+3+3 = 4^3 - 3^3 - 3^3.
35 is a term: 35 = 14+13+8 = 14^3 - 13^3 - 8^3.

Mathematica

Solve[a==r^3-s^3-d^3 && 1<=r<=1000 && 1<=s<=1000 && 1<=d<=1000 && 0<=a && r>s>=d && a==r+s+d, {a, r, s, d}, Integers]

Crossrefs

Cf. A355490 (with squares instead of cubes).

Sequence in context: A044087 A022702 A044468 * A351860 A109710 A000447

Adjacent sequences: A355488 A355489 A355490 * A355492 A355493 A355494

Keyword

nonn

Author

Mohammad Arab, Jul 04 2022

Extensions

More terms from Jinyuan Wang, Jul 05 2022

Status

approved