OFFSET
0,4
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..300
Ira M. Gessel, Yan Zhuang, Counting permutations by alternating descents, 2014. See c(n).
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 11 2014
EXTENSIONS
More terms from Alois P. Heinz, Oct 28 2014
STATUS
approved