%I A077544
%S A077544 2,11,135,5074,360425,39070191,5967561775,1220096909060,321570878429169,
%T A077544 106137499051584505,42873948150095463071,20803502274492921984870,
%U A077544 11938961126118491232769105,7998487694738166709923841379
%N A077544 Product of next n numbers + sum of next n numbers.
%F A077544 a(n) = (k+1)(k+2)...(k+n) + nk + n(n+1)/2, k = n(n-1)/2
%p A077544 seq(product(i,i=n*(n-1)/2+1..n*(n-1)/2+n)+n*(n+1)/2+n*(n-1)/2*n,n=1..20);
%Y A077544 Sequence in context: A066382 A139387 A041725 this_sequence A087480 A060059 
               A113148
%Y A077544 Adjacent sequences: A077541 A077542 A077543 this_sequence A077545 A077546 
               A077547
%K A077544 nonn
%O A077544 1,1
%A A077544 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 09 2002
%E A077544 More terms from Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Jan 12 
               2003