login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A182803 Number of 8-core partitions of n. 3

%I

%S 1,1,2,3,5,7,11,15,14,22,26,32,37,45,47,56,75,77,89,102,111,124,142,

%T 147,167,182,196,210,242,249,288,322,299,349,382,393,423,467,453,499,

%U 570,563,602,669,649,716,772,754,843,907,884

%N Number of 8-core partitions of n.

%H Alois P. Heinz, <a href="/A182803/b182803.txt">Table of n, a(n) for n = 0..10000</a>

%F G.f.: Product_{i>=1} (1-x^(8*i))^8/(1-x^i).

%F Euler transform of period 8 sequence [1,1,1,1,1,1,1,-7, .. ].

%p with(numtheory): A:= proc(n, t) option remember; local d, j; `if`(n=0, 1, add(add(`if`(t=0 or irem(d, t)=0, d-d*t, d), d=divisors(j)) *A(n-j, t), j=1..n)/n) end: seq(A(n,8), n=0..50);

%Y 8th column of A175595.

%K nonn

%O 0,3

%A _Alois P. Heinz_, Dec 03 2010

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

Content is available under The OEIS End-User License Agreement .

Last modified May 22 09:00 EDT 2015. Contains 257722 sequences.