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%I #8 Sep 17 2019 15:25:27
%S 1,3,29,286,2954,31331,338237,3697641,40803750,453553098,5070709436,
%T 56958466285,642318632219,7267415064770,82459118104869,
%U 937909185029935,10690839598092195,122090330159822364,1396616783648701671,16000093859781395335,183548792680080355470
%N T(4n,n), where T is the array in A026120.
%Y Cf. A026120.
%K nonn
%O 0,2
%A _Clark Kimberling_
%E More terms from _Sean A. Irvine_, Sep 17 2019