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A188425 Position of 2^n in A051037 (5-smooth numbers). 4
1, 2, 4, 7, 12, 19, 27, 38, 52, 68, 87, 110, 137, 167, 201, 240, 284, 332, 386, 446, 511, 582, 660, 745, 836, 934, 1041, 1155, 1277, 1407, 1545, 1692, 1849, 2015, 2190, 2376, 2571, 2777, 2994, 3222, 3461, 3711, 3974, 4249, 4535, 4834, 5147, 5473, 5811, 6164, 6531, 6911, 7306, 7716, 8142, 8582, 9039, 9511, 9999, 10503, 11024, 11563, 12119, 12692, 13283, 13892, 14519 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Zak Seidov, Table of n, a(n) for n = 0..200

FORMULA

2^n=A051037(a(n)).

EXAMPLE

2^0 = 1 = A051037(1), hence a(0)=1; a(25)=934 because 2^25 = 33554432 = A051037(934).

CROSSREFS

Cf. A188426, A188427 (positions of powers of 3 and 5 in A051037).

Sequence in context: A209616 A192521 A066699 * A087149 A090853 A333311

Adjacent sequences:  A188422 A188423 A188424 * A188426 A188427 A188428

KEYWORD

nonn

AUTHOR

Zak Seidov, Mar 30 2011

STATUS

approved

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Last modified October 3 18:24 EDT 2022. Contains 357237 sequences. (Running on oeis4.)