Search: id:A001361
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%I A001361
%S A001361 1,241,26641,338401,2240161,10242001,36638641,109907521,
%T A001361 288653761,683158321,1486914001,3020862241,5793372001,10579330321,
%U A001361 18522042481,31261968001,51096647041,81176500081,125741512081
%N A001361 Number of points in interior of n-th crystal ball in E_8 lattice.
%H A001361 <a href="Sindx_Cor.html#crystal_ball">Index entries for crystal ball 
               sequences</a>
%H A001361 J. H. Conway and N. J. A. Sloane, Low-Dimensional Lattices VII: Coordination 
               Sequences, Proc. Royal Soc. London, A453 (1997), 2369-2389 (<a href="http:/
               /www.research.att.com/~njas/doc/ldl7.txt">Abstract</a>, <a href="http:/
               /www.research.att.com/~njas/doc/ldl7.pdf">pdf</a>, <a href="http:/
               /www.research.att.com/~njas/doc/ldl7.ps">ps</a>).
%H A001361 G. Nebe and N. J. A. Sloane, <a href="http://www.research.att.com/~njas/
               lattices/E8.html">Home page for this lattice</a>
%p A001361 57/7*x^8-108/7*x^7+30*x^6-72*x^5+39*x^4-36*x^3+300/7*x^2+24/7*x+1
%Y A001361 Cf. A008340, A008349.
%Y A001361 Sequence in context: A094732 A119728 A133327 this_sequence A120377 A060110 
               A113468
%Y A001361 Adjacent sequences: A001358 A001359 A001360 this_sequence A001362 A001363 
               A001364
%K A001361 nonn
%O A001361 1,2
%A A001361 N. J. A. Sloane (njas(AT)research.att.com).

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