OFFSET
1,2
LINKS
Sergey Kitaev and Jeffrey Remmel, Simple marked mesh patterns, arXiv preprint arXiv:1201.1323, 2012
EXAMPLE
Triangle begins:
1
2
6
24
116 4
632 80 8
3720 1056 240 24
23072 11680 4480 992 96
...
CROSSREFS
KEYWORD
nonn,tabf,more
AUTHOR
N. J. A. Sloane, May 04 2012
STATUS
approved