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Inverse Euler transform of A119268.
0

%I #9 Mar 17 2020 10:17:18

%S 0,1,0,1,2,3,6,12,24,49,108,239,554,1311,3200

%N Inverse Euler transform of A119268.

%C Is this sequence always nonnegative? If so, is there a combinatorial interpretation?

%t A119268 = Cases[Import["https://oeis.org/A119268/b119268.txt", "Table"], {_, _}][[All, 2]];

%t (* EulerInvTransform is defined in A022562 *)

%t Join[{0}, EulerInvTransform[Rest @ A119268]] (* Jean-François Alcover, Feb 23 2020, updated Mar 17 2020 *)

%K more,nonn

%O 0,5

%A _Franklin T. Adams-Watters_, May 30 2006