%I A160805
%S A160805 4,6,13,27,50,84,131,193,272,370,489,631,798,992,1215,1469,1756,2078,
%T A160805 2437,2835,3274,3756,4283,4857,5480,6154,6881,7663,8502,9400,10359,
%U A160805 11381,12468,13622,14845,16139,17506,18948,20467,22065,23744,25506
%N A160805 (2*n^3 + 9*n^2 + n + 24) / 6.
%C A160805 Arithmetic progression of third order; a(n+1)-a(n)=A008865(n+2);
%C A160805 a(n) = A101986(n) + 4.
%D A160805 R. Courant, Differential and Integral Calculus Vol. I (Blackie&Son, 1937), 
               ch. I.4, Example 5, p.29.
%Y A160805 Sequence in context: A049732 A136391 A105205 this_sequence A012776 A016072 
               A095867
%Y A160805 Adjacent sequences: A160802 A160803 A160804 this_sequence A160806 A160807 
               A160808
%K A160805 nonn
%O A160805 0,1
%A A160805 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 26 2009