A036419 - OEIS

%I #15 Mar 22 2024 08:55:48

%S 0,0,0,0,1,3,8,15,27,43,67,97,136,183,239,300,369,432,498,551,594,614,

%T 624,601,570,514,453,378,312,238,181,128,89,56,37,20,12,6,3,1,1

%N Number of ternary rooted trees with n nodes and height exactly 4.

%H A. T. Balaban, J. W. Kennedy and L. V. Quintas, <a href="https://doi.org/10.1021/ed065p304">The number of alkanes having n carbons and a longest chain of length d</a>, J. Chem. Education, 65 (1988), 304-313.

%H <a href="/index/Ro#rooted">Index entries for sequences related to rooted trees</a>

%Y Cf. A036370, A036437.

%K nonn,fini,full

%O 0,6

%A _N. J. A. Sloane_, Eric Rains (rains(AT)caltech.edu)