

A252476


Least index k such that n = A252486(k), minimal number of 6th powers that sum to k^6; or a(n)=0 if no such k exists.


2



1141, 251, 54, 39, 18, 17, 16, 14, 4, 13, 11
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OFFSET

7,1


COMMENTS

It is not known whether a(6)>0.
Further values are a(19)=9, a(21)=7, a(22)=6, a(29)=5, a(36)=3, a(64)=2. The last of these is most probably the last nonzero term of the sequence.


LINKS

Table of n, a(n) for n=7..17.


CROSSREFS

Sequence in context: A206112 A232133 A261572 * A020397 A132410 A252428
Adjacent sequences: A252473 A252474 A252475 * A252477 A252478 A252479


KEYWORD

nonn,more,hard


AUTHOR

M. F. Hasler, Dec 17 2014


STATUS

approved



