The On-Line Encyclopedia of Integer Sequences (OEIS)

A099312 revision #6

A099312

Exponent of greatest power of 2 dividing the n-th minimal number.

0, 1, 2, 1, 2, 4, 3, 2, 4, 2, 6, 3, 4, 2, 6, 4, 3, 6, 4, 3, 2, 6, 10, 2, 4, 4, 3, 6, 10, 4, 12, 4, 6, 2, 4, 6, 3, 10, 5, 12, 6, 4, 10, 6, 4, 6, 3, 4, 12, 2, 4, 10, 6, 5, 4, 6, 12, 16, 10, 3, 6, 10, 5, 6, 4, 4, 6, 12, 16, 6, 4, 10, 6, 18, 4, 10, 12, 5, 5, 10, 12, 4, 5, 16

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OFFSET

1,3

COMMENTS

A minimal number is the smallest number with a given number of divisors, see A007416.

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..1000 (calculated from the b-file at A007416)

FORMULA

a(n) = A007814(A007416(n)).

CROSSREFS

Cf. A007416, A007814, A099311, A099314, A099316.

Sequence in context: A078142 A133422 A331136 * A117505 A331499 A209128

Adjacent sequences: A099309 A099310 A099311 * A099313 A099314 A099315

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Oct 12 2004

STATUS

proposed