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A322298
Number of permutations of [n] in which the length of every increasing run is 0 or 1 (mod 9).
4
1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 20, 200, 1520, 9440, 50624, 242816, 1066496, 4361216, 16856556, 64202712, 288983580, 2160645840, 24525417780, 294825080160, 3270522114228, 32898687457422, 302696887652022, 2577419367939422, 20537905525582022, 155236628840778062
OFFSET
0,10
LINKS
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Dec 02 2018
STATUS
approved