

A332665


a(n) = largest number k that is not the sum of {2 squares, a nonnegative 5th power, and a nonnegative nth power}.


0



71, 2543, 146687, 55871, 63703, 353087, 606239, 21073228, 4606428, 19212172, 16301375, 88507864, 228238087, 126691212, 121909855, 366845415, 448525727, 1818767247, 1319413228, 341968924, 673747279, 188739607, 2366756975, 1770393855, 411629407, 1240489516
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OFFSET

3,1


COMMENTS

All terms are conjectural and have only been checked up to 4*10^9.


LINKS

Table of n, a(n) for n=3..28.
W. Jagy and I. Kaplansky, Sums of Squares, Cubes and Higher Powers, Experimental Mathematics, vol. 4 (1995) pp. 169173.


EXAMPLE

a(4) = 2543, since 2543 is the greatest number such that is not the sum of {2 squares, a nonnegative 5th power, and a 4th power} (at least up to 4*10^9).


CROSSREFS

Cf. A022566, A111151, A299796.
Sequence in context: A225741 A049295 A017787 * A017734 A263248 A221051
Adjacent sequences: A332662 A332663 A332664 * A332666 A332667 A332668


KEYWORD

nonn


AUTHOR

XU Pingya, Feb 19 2020


STATUS

approved



