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%I #16 Jan 20 2019 23:20:34
%S 1,4,2,9,8,3,20,18,12,4,35,40,27,16,5,66,70,60,36,20,6,105,132,105,80,
%T 45,24,7,176,210,198,140,100,54,28,8,270,352,315,264,175,120,63,32,9,
%U 420,540,528,420,330,210,140,72,36,10,616,840,810,704,525,396,245,160,81,40,11
%N Array T(n,k) = n*k*A000041(n) read by antidiagonals, n,k >= 1.
%e Array begins:
%e 1, 2, 3, 4, 5, 6, 7, ...
%e 4, 8, 12, 16, 20, 24, 28, ...
%e 9, 18, 27, 36, 45, 54, 63, ...
%e 20, 40, 60, 80, 100, 120, 140, ...
%e 35, 70, 105, 140, 175, 210, 245, ...
%e 66, 132, 198, 264, 330, 396, 462, ...
%e 105, 210, 315, 420, 525, 630, 735, ...
%p A182728 := proc(n,k) n*k*combinat[numbpart](n) ; end proc:
%p seq(seq( A182728(d+1-k, k), k=1..d), d=1..10) ; # _R. J. Mathar_, Feb 01 2011
%Y Cf. A000041, A135010, A182729, A183011.
%Y Column 1 gives A066186. Column 24 gives A183009.
%K nonn,easy,tabl
%O 1,2
%A _Omar E. Pol_, Jan 22 2011