login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A023029 Number of partitions of n into 9 unordered relatively prime parts. 1
1, 1, 2, 3, 5, 7, 11, 15, 22, 29, 41, 53, 73, 92, 123, 154, 201, 247, 317, 386, 488, 586, 732, 872, 1074, 1269, 1549, 1812, 2194, 2551, 3055, 3535, 4206, 4824, 5708, 6521, 7645, 8701, 10156, 11476, 13338, 15022, 17332, 19468, 22380, 24984, 28627, 31885, 36306 (list; graph; refs; listen; history; text; internal format)
OFFSET

9,3

LINKS

Table of n, a(n) for n=9..57.

FORMULA

G.f.: Sum_{k>=1} mu(k)*x^(9*k) / Product_{j=1..9} (1 - x^(j*k)). - Ilya Gutkovskiy, Aug 31 2019

CROSSREFS

Column 9 of A282750.

Sequence in context: A035978 A319475 A319454 * A035987 A035997 A036008

Adjacent sequences:  A023026 A023027 A023028 * A023030 A023031 A023032

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 25 16:45 EDT 2020. Contains 337344 sequences. (Running on oeis4.)