%I M2165 N0862 #18 Feb 01 2022 23:36:59
%S 1,0,2,44,1008,34432,1629280,101401344,8030787968,788377273856,
%T 93933191303424,13350759115563520,2231133728986759168,
%U 433075048506207645696,96617322164029448916992,24549315871469898190266368,7047652261245574026565877760
%N Related to Latin rectangles.
%D S. M. Kerawala, The enumeration of the Latin rectangle of depth three by means of a difference equation, Bull. Calcutta Math. Soc., 33 (1941), 119-127.
%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H <a href="/index/La#Latin">Index entries for sequences related to Latin squares and rectangles</a>
%F a(1) = 1, a(n) = A000186(n) + A000186(n-1) + 3*(n-1)*A001626(n-1). - _Sean A. Irvine_, Sep 25 2015
%K nonn
%O 1,3
%A _N. J. A. Sloane_
%E More terms from _Sean A. Irvine_, Sep 25 2015