%I #9 Apr 19 2021 02:18:47

%S 1,1,5,16,61,239

%N Column 2 of triangle in A343168.

%Y Cf. A343463, A343464, A343162-A343168.

%K nonn,more

%O 3,3

%A _N. J. A. Sloane_, Apr 19 2021, based on an email from _Don Knuth_