The hypotenuse of a primitive Pythagorean triangle in which the hypotenuse and a leg are palindromes in base 2.
5, 17, 65, 257, 365, 1025, 4097, 16385, 65537, 84005, 97661, 262145, 323705, 1048577, 4194305, 5041049, 16777217, 21004805, 21070597, 23138573, 67108865, 72558161, 77781545, 97978205, 268435457
1
The hypotenuse of the triples in S000510. Note that we show each hypotenuse only once, even though it may occur more than once.
T. D. Noe, Plot of 25 terms
John Rafael M. Antalan and Richard P. Tagle, Numeric palindromes in primitive and non-primitive Pythagorean triples, arxiv.org 1502.06760 (Feb 24 2015)
Eric W. Weisstein, MathWorld: Pythagorean Triple
nonn,base,hard,more
T. D. Noe, Feb 26 2015