cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A320595 Number of partitions of n with seven parts in which no part occurs more than twice.

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%I A320595 #4 Oct 16 2018 16:46:09
%S A320595 1,2,3,6,9,14,21,30,41,57,75,99,129,165,207,261,322,396,483,585,701,
%T A320595 840,995,1176,1382,1617,1880,2183,2518,2898,3322,3797,4321,4911,5556,
%U A320595 6275,7066,7939,8892,9947,11092,12350,13719,15214,16832,18601,20507,22580
%N A320595 Number of partitions of n with seven parts in which no part occurs more than twice.
%H A320595 Alois P. Heinz, <a href="/A320595/b320595.txt">Table of n, a(n) for n = 16..10000</a>
%F A320595 G.f.: -(x^12-x^10-x^8-x^7+x^3+x+1)*x^16 / ((x^2-x+1) *(x^4+x^3+x^2+x+1) *(x^6+x^5+x^4+x^3+x^2+x+1) *(x^2+1) *(x^2+x+1)^2 *(x+1)^3 *(x-1)^7).
%Y A320595 Column k=7 of A209318.
%K A320595 nonn,easy
%O A320595 16,2
%A A320595 _Alois P. Heinz_, Oct 16 2018