A267216 Numbers D such that D^2 = A^2 + B^3 + C^4 has more than two solutions in positive integers (A, B, C).

9, 21, 28, 33, 45, 47, 51, 53, 55, 61, 65, 66, 68, 69, 70, 73, 75, 77, 81, 82, 84, 87, 89, 91, 93, 95, 97, 103, 105, 107, 108, 109, 110, 111, 113, 114, 116, 117, 119, 123, 128, 129, 131, 133, 135, 136, 139, 142, 143, 145, 147, 149, 150, 152, 154, 156, 157, 161

Offset: 1

Author

Chai Wah Wu, Feb 01 2016

Keywords

• nonn

Comments

Subsequence of A256604.

Examples

			9^2 = 1^2 + 4^3 + 2^4 = 4^2 + 4^3 + 1^4 = 8^2 + 1^3 + 2^4.
21^2 = 11^2 + 4^3 + 4^4 = 12^2 + 6^3 + 3^4 = 19^2 + 4^3 + 2^4.
		

Links

• Chai Wah Wu, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A256604.