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Even numbers of the form floor( binomial(2k, 2j)/binomial(k, j)).
1

%I #4 Mar 30 2012 18:59:09

%S 46,452,1618,2476,2926,3944,5628,7628,7830,10130,11688,13676,21190,

%T 21882,22598,24228,32848,40654,46974,64660,71574,72310,86306,90660,

%U 94222,112312,119290,143078,153884,167006,179004,186654,193342,220490

%N Even numbers of the form floor( binomial(2k, 2j)/binomial(k, j)).

%t Take[ Select[ Union[ Flatten[ Table[ Floor[ Binomial[2n, 2k]/Binomial[n, k]], {n, 0, 76}, {k, 0, n}]]], EvenQ[ # ] &], 34]

%Y Cf. even terms of A113245.

%K nonn

%O 1,1

%A _Paul Barry_ and _Robert G. Wilson v_, Oct 21 2005