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%I #13 Oct 09 2020 03:36:01
%S 0,0,1,0,3,9,0,7,21,49,0,12,36,84,144,0,20,60,140,240,400,0,30,90,210,
%T 360,600,900,0,44,132,308,528,880,1320,1936,0,65,195,455,780,1300,
%U 1950,2860,4225,0,91,273,637,1092,1820,2730,4004,5915,8281
%N Triangular array read by rows: T(n,k) = A337656(n) * A337656(k) for 1 <= k <= n.
%H Peter Kagey, <a href="/A338033/b338033.txt">Table of n, a(n) for n = 1..10011</a> (first 141 rows, flattened)
%e Multiplication table begins:
%e * | 0 1 3 7 12 20 30 44 65
%e -----+-------------------------------------
%e 0 | 0
%e 1 | 0 1
%e 3 | 0 3 9
%e 7 | 0 7 21 49
%e 12 | 0 12 36 84 144
%e 20 | 0 20 60 140 240 400
%e 30 | 0 30 90 210 360 600 900
%e 44 | 0 44 132 308 528 880 1320 1936
%e 65 | 0 65 195 455 780 1300 1950 2860 4225
%Y Cf. A337656, A337657, A338031 (addition), A338034 (by antidiagonals).
%Y Cf. A337661, A337974, A338016.
%K nonn,tabl
%O 1,5
%A _Peter Kagey_, Oct 07 2020
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