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A063765
Least integer m whose largest prime factor > m^(n/(n+1)).
1
6, 10, 22, 34, 74, 134, 262, 514, 1042, 2062, 4106, 8198, 16418, 32822, 65542, 131074, 262202, 524294, 1048618, 2097166, 4194338, 8388638, 16777234, 33554518, 67108934, 134217758, 268435514, 536870918, 1073741846, 2147483654
OFFSET
1,1
COMMENTS
a(n) > 2^(n+1); in fact a(n) = 2 * first prime which exceeds 2^n.
FORMULA
a(n) = 2 * A014210(n).
MATHEMATICA
k = 2; Do[ While[ PrimeQ[ k ] || FactorInteger[ k ] [[ -1, 1 ] ] <= k^(n/(n + 1)), k++ ]; Print[ k ], {n, 1, 35} ]
CROSSREFS
Cf. A014210.
Sequence in context: A339437 A108605 A216049 * A085712 A337190 A179875
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Aug 14 2001
STATUS
approved