%I
%S 3,6,15,27,60,97,186,335
%N Number of distinct rate points of concentric permutation source codes with two initial codewords in dimension n
%H H. Q. Nguyen, L. R. Varshney, and V. K. Goyal, <a href="http://arxiv.org/abs/0909.0704">Concentric Permutation Source Codes</a>, arXiv:0909.0704v2 [cs.IT] 19 Sep 2009.
%Y Cf. A070289, which is the number of distinct rate points of an ordinary permutation source code.
%K easy,nonn
%O 2,1
%A Vivek Goyal (vgoyal(AT)mit.edu), Sep 25 2009
