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A188426
Position of 3^n in A051037 (5-smooth numbers).
4
1, 3, 8, 17, 31, 50, 77, 112, 157, 211, 276, 355, 448, 554, 676, 815, 973, 1149, 1344, 1561, 1801, 2064, 2351, 2663, 3003, 3371, 3766, 4190, 4647, 5135, 5657, 6212, 6802, 7430, 8094, 8797, 9539, 10322, 11147, 12014, 12925, 13881, 14883, 15933, 17031, 18178, 19375, 20624, 21925, 23281, 24690
OFFSET
0,2
FORMULA
A051037(a(n)) = 3^n.
a(n) ~ c * n^3, where c = log(3)^2/(6*log(2)*log(5)) = 0.180317536836709... - Vaclav Kotesovec and Amiram Eldar, Sep 22 2024
CROSSREFS
Cf. A051037, A188425, A188427 (powers of 2 and 5).
Sequence in context: A024929 A033816 A011889 * A349975 A105163 A011850
KEYWORD
nonn
AUTHOR
Zak Seidov, Mar 31 2011
STATUS
approved