%N Number of inequivalent ways to select n cards in the game of SET.
%C The game of SET (see the reference) is played with 81 cards, so this sequence is finite, with 82 terms.
%H Ben Coleman and Kevin Hartshorn, <a href="http://www.jstor.org/stable/10.4169/math.mag.85.2.083">Game, Set, Math</a>, Math. Mag. 85(2012), p. 83-96.
%A _John W. Layman_, Apr 20 2012