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A098239
Numbers n such that n^3 differs from smallest k > n that makes n^6+1 divide k^6+1.
1
1, 2, 6, 8, 47, 136, 177
OFFSET
1,2
COMMENTS
n such that A066021(n) differs from A000578(n).
a(8) > 10^6.
MATHEMATICA
f[n_] := Block[{k = 1, m}, While[m = (k^6 + 1)/(n^6 + 1); m < 2 || !IntegerQ[m], k++ ]; n^3 - k]; Do[ If[ f[n] != 0, Print[n]], {n, 215}] (* Robert G. Wilson v, Sep 03 2004 *)
CROSSREFS
Sequence in context: A118211 A050552 A105607 * A140257 A361427 A204546
KEYWORD
nonn,hard,more
AUTHOR
Ralf Stephan, Sep 01 2004
EXTENSIONS
More terms from Robert G. Wilson v, Sep 03 2004
Lower bound for a(8) updated by Max Alekseyev, Oct 13 2009
STATUS
approved