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Positive numbers not of the form x^5 - y^2.
2

%I #6 Jan 06 2013 12:24:39

%S 2,3,4,5,6,8,9,10,11,12,13,14,15,17,20,21,22,24,25,26,27,29,30,33,34,

%T 35,36,37,38,39,40,41,42,43,44,45,46,48,49,50,51,52,53,54,55,56,57,58,

%U 59,61,62,64,65,66,67,68,69,70,71,72,73,75,76,77,78,79,80,81,82,83,84,85

%N Positive numbers not of the form x^5 - y^2.

%e 19 can be expressed as 55^5 - 22434^2, so 19 is not in the sequence.

%Y Cf. A152412, A177760, A177761, A177764, A177765, A177859.

%K nonn

%O 1,1

%A _Artur Jasinski_, Jul 14 2010

%E Edited by _Arkadiusz Wesolowski_, Jan 05 2013