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A267216 Numbers D such that D^2 = A^2 + B^3 + C^4 has more than two solutions in positive integers (A, B, C). 1
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Subsequence of A256604.

LINKS

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

EXAMPLE

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.

CROSSREFS

Cf. A256604.

Sequence in context: A036316 A340122 A339728 * A039289 A045252 A139538

Adjacent sequences:  A267213 A267214 A267215 * A267217 A267218 A267219

KEYWORD

nonn

AUTHOR

Chai Wah Wu, Feb 01 2016

STATUS

approved

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Last modified October 1 11:38 EDT 2022. Contains 357147 sequences. (Running on oeis4.)