A055393 Sum of a square and a nonnegative cube in more than one way.

1, 9, 17, 36, 64, 65, 89, 100, 108, 129, 145, 196, 225, 233, 252, 289, 297, 316, 388, 441, 449, 464, 505, 512, 537, 548, 576, 577, 593, 633, 729, 730, 737, 745, 784, 792, 793, 801, 841, 873, 1000, 1025, 1088, 1090, 1116, 1225, 1289, 1296, 1304, 1305, 1367

Offset: 1

Author

Henry Bottomley, May 12 2000

Keywords

• nice
• nonn

Examples

			a(12) = 225 since 225 = 6^3 + 3^2 = 5^3 + 10^2 = 0^3 + 15^2.
		

Links

• T. D. Noe, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A022549, A055394.

Programs

Mathematica

nn = 2000; t = Table[0, {nn}]; Do[n = i^2 + j^3; If[0 < n <= nn, t[[n]]++], {i, 0, Sqrt[nn]}, {j, 0, nn^(1/3)}]; Flatten[Position[t, ?(# > 1 &)]] (* _T. D. Noe, Dec 08 2012 *)

Extensions

Extended by T. D. Noe, Dec 08 2012