OFFSET
0,11
COMMENTS
See Noonan-Zeilberger for precise definition.
LINKS
J. Noonan and D. Zeilberger, [math/9808080] The Enumeration of Permutations With a Prescribed Number of ``Forbidden'' Patterns. Also Adv. in Appl. Math. 17 (1996), no. 4, 381--407. MR1422065 (97j:05003).
EXAMPLE
Triangle begins:
0,
0,0,
0,0,0,
0,0,0,0,
3,3,1,0,0,
24,24,12,2,0,0,
133,133,74,23,3,0,0,
635,635,371,141,36,4,0,0,
2807,2807,1688,709,227,51,5,0,0,
11864,11864,7276,3248,1168,334,68,6,0,0,
48756,48756,30340,14121,5459,1771,464,87,7,0,0
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
N. J. A. Sloane, Sep 15 2013
STATUS
approved