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A152619 n*(n+2)^2 2

%I

%S 0,9,32,75,144,245,384,567,800,1089,1440,1859,2352,2925,3584,4335,

%T 5184,6137,7200,8379,9680,11109,12672,14375,16224,18225,20384,22707,

%U 25200,27869,30720,33759,36992,40425,44064,47915,51984,56277,60800,65559

%N n*(n+2)^2

%H Luis Manuel Rivera, <a href="http://arxiv.org/abs/1406.3081">Integer sequences and k-commuting permutations</a>, arXiv preprint arXiv:1406.3081, 2014

%F a(n) = A027620(n-1), n>0.

%F G.f.: x(9-4x+x^2)/(1-x)^4. [From _R. J. Mathar_, Dec 10 2008]

%t Table[n(n+2)^2,{n,0,60}] (* _Vladimir Joseph Stephan Orlovsky_, Apr 12 2011 *)

%K nonn,easy

%O 0,2

%A _Philippe Deléham_, Dec 09 2008

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Last modified October 21 12:12 EDT 2019. Contains 328299 sequences. (Running on oeis4.)