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A216756
a(n) = floor(e^e^(n/e^gamma)).
0
2, 5, 21, 219, 12686, 15636041, 4101615513409, 12983864742986180266005, 588668718546098799238432431873920456606, 93859726557327916653208320240553220872245170780539985934198524439788
OFFSET
0,1
COMMENTS
Assuming the Riemann hypothesis we have a(n) < A134716(n) for n >= 4.
LINKS
Eric Weisstein's World of Mathematics, Robin's Theorem
EXAMPLE
a(3) = 219 because exp(exp(n/exp(gamma))) = 219.0062568829....
MATHEMATICA
Table[Floor[E^E^(n/E^EulerGamma)], {n, 0, 9}]
PROG
(Magma) [Floor(Exp(Exp(n/Exp(EulerGamma(RealField(100)))))) : n in [0..9]];
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved