%I M3446 N1400 #19 Sep 29 2023 22:05:16
%S 4,12,36,96,264,648,1584,3576,7872,15360,29184,51120,90384,158448,
%T 286296,509808,904296,1556304,2638368,4273512,6783888,10308576,
%U 15419640,22305840,32204568,45812088,65912784,94069080
%N Number of strongly asymmetric sequences of length n.
%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 Sean A. Irvine, <a href="/A002842/b002842.txt">Table of n, a(n) for n = 1..35</a>
%H F. Fiala, <a href="http://dx.doi.org/10.1090/S0025-5718-1971-0291113-6">Strongly asymmetric sequences generated by four elements</a>, Math. Comp., 25 (1971), 155-162.
%K nonn
%O 1,1
%A _N. J. A. Sloane_
%E More terms from _Sean A. Irvine_, Nov 09 2014