%I A029584
%S A029584 2,1,0,2,6,16,60,272,1386,7936,50520,353792,2702766,22368256,
%T A029584 199360980,1903757312,19391512146,209865342976,2404879675440,
%U A029584 29088885112832,370371188237526,4951498053124096,69348874393137900
%N A029584 Expansion of cos x + tan x + sec x.
%C A029584 a(2n) = 2*A012007(n), a(2n+1) = A000182(n+1).
%Y A029584 Sequence in context: A059084 A145490 A070677 this_sequence A136255 A159813 
               A157409
%Y A029584 Adjacent sequences: A029581 A029582 A029583 this_sequence A029585 A029586 
               A029587
%K A029584 nonn
%O A029584 0,1
%A A029584 N. J. A. Sloane (njas(AT)research.att.com).