0,5
J. Riordan, An Introduction to Combinatorial Analysis, Wiley, 1958, p. 134.
Index entries for sequences related to rooted trees
Sequence in context: A039878 A039886 A109523 this_sequence A116697 A014244 A059814
Adjacent sequences: A008292 A008293 A008294 this_sequence A008296 A008297 A008298
nonn,tabl,nice
N. J. A. Sloane (njas(AT)research.att.com).
Search completed in 0.002 seconds