%I #4 Oct 22 2018 21:09:26
%S 1,12,30,110,382,1270,4298,14560,49204
%N Row 4 of array in A320500.
%Y Cf. A320500.
%K nonn,more
%O 1,2
%A _N. J. A. Sloane_, Oct 22 2018, based on email from _Don Knuth_, Oct 20 2018