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!)
A114326 Number of partitions p of n such that min(p) and max(p) have a common factor. 0
0, 1, 1, 2, 1, 4, 1, 5, 4, 8, 3, 15, 7, 19, 19, 29, 22, 49, 38, 72, 73, 104, 100, 164, 161, 229, 252, 343, 363, 510, 539, 716, 806, 1022, 1153, 1477, 1639, 2057, 2353, 2899, 3281, 4054, 4590, 5586, 6416, 7691, 8798, 10575, 12077, 14376 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..50.

EXAMPLE

a(6)=4 since 6 has the following 4 partitions {6}, {4, 2}, {3, 3}, {2, 2, 2} with GCD of min and max greater than 1.

CROSSREFS

Cf. A000041.

Sequence in context: A328602 A218970 A216952 * A308175 A241423 A323244

Adjacent sequences:  A114323 A114324 A114325 * A114327 A114328 A114329

KEYWORD

nonn

AUTHOR

Giovanni Resta, Feb 06 2006

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 February 26 10:29 EST 2020. Contains 332279 sequences. (Running on oeis4.)