OFFSET
0,1
COMMENTS
Apart from initial term and offset, same as A005640, which is the main entry for this sequence.
REFERENCES
J. P. Hayes, Enumeration of fanout-free Boolean functions, J. ACM, 23 (1976), 700-709.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 30 2013
STATUS
approved