0,4

E. M. Rains and N. J. A. Sloane, On Cayley's Enumeration of Alkanes (or 4-Valent Trees), J. Integer Sequences, Vol. 2 (1999), Article 99.1.1.

Index entries for sequences related to rooted trees

If T_i(z) = g.f. for ternary trees of height at most i, T_{i+1}(z)=1+z*(T_i(z)^3/6+T_i(z^2)*T_i(z)/2+T_i(z^3)/3); T_0(z) = 1.

Sequence in context: A132043 A055545 A036375 this_sequence A000598 A003008 A054199

Adjacent sequences: A036373 A036374 A036375 this_sequence A036377 A036378 A036379

nonn,fini

njas, E. M. Rains (rains(AT)caltech.edu)