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%I #11 Nov 07 2019 05:14:01
%S 1,1,2,3,15,70,154,105,77,55,165,120,4620,62216,95445,72720,28280,
%T 43632,239976,3563280,2820930,372362760,37310748552,7078607624,
%U 10642043052900,2456049068550,17265042532279080,472434345656000280,22811829833104013520
%N First diagonal of A027516.
%F Numerators of sequence a[n, n] in A=(b[i, j])^2 where b[i, j] = A008284(i, j) / Partitions(i) if j<=i, 0 if j>i.
%K nonn
%O 1,3
%A _Olivier Gérard_
%E More terms from _Sean A. Irvine_, Nov 06 2019