A099387 Number of partitions of the n-th minimal number into minimal numbers.

1, 2, 4, 7, 24, 46, 138, 507, 1466, 3641, 4806, 106716, 301330, 1173587, 1771791, 7868294, 156060995, 8126341146, 64642714833, 292435587912, 586597464339, 1138023523395, 2232671126262, 21006004690614, 28738943640898, 570863391802477, 88656067576349103

Offset

1,2

Comments

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

Links

Table of n, a(n) for n=1..27.

Formula

a(n) = A099383(A007416(n)).

Example

a(6) = #{6, 4+2, 4+1+1, 2+2+2, 2+2+1+1, 2+1+1+1+1, 1+1+1+1+1+1} = 7.

Crossrefs

Cf. A099388, A000041, A007416, A005179.

Sequence in context: A059501 A353986 A138049 * A359095 A036440 A103001

Adjacent sequences: A099384 A099385 A099386 * A099388 A099389 A099390

Keyword

nonn

Author

Reinhard Zumkeller, Oct 14 2004

Extensions

Terms a(16) and beyond from Andrew Howroyd, Apr 20 2021

Status

approved