A099311 Exponent of greatest power of 2 dividing the smallest number having exactly n divisors.

0, 1, 2, 1, 4, 2, 6, 3, 2, 4, 10, 2, 12, 6, 4, 3, 16, 2, 18, 4, 6, 10, 22, 3, 4, 12, 2, 6, 28, 4, 30, 3, 10, 16, 6, 2, 36, 18, 12, 4, 40, 6, 42, 10, 4, 22, 46, 3, 6, 4, 16, 12, 52, 2, 10, 6, 18, 28, 58, 4, 60, 30, 6, 3, 12, 10, 66, 16, 22, 6, 70, 5, 72, 36, 4, 18, 10, 12, 78, 4, 2, 40, 82, 6, 16

Offset

1,3

Links

David Wasserman, Table of n, a(n) for n = 1..2000

Formula

a(n) = A007814(A005179(n)).

Crossrefs

Cf. A005179, A007814, A099312, A099313, A099315.

Sequence in context: A131888 A109170 A225368 * A349442 A130742 A130107

Adjacent sequences: A099308 A099309 A099310 * A099312 A099313 A099314

Keyword

nonn

Author

Reinhard Zumkeller, Oct 12 2004

Status

approved