OFFSET
1,3
LINKS
I. G. Enting and A. J. Guttmann, On the area of square lattice polygons, J. Statist. Phys., 58 (1990), 475-484. See Table 1.
EXAMPLE
Triangle begins:
==========================================================
n\k | 2 3 4 5 6 7 8 9 10 11 12 13
-----|----------------------------------------------------
1 | 1,
2 | 0,2,
3 | 0,0,6,
4 | 0,0,1,18
5 | 0,0,0, 8,55,
6 | 0,0,0, 2,40,174,
7 | 0,0,0, 0,22,168,566,
8 | 0,0,0, 0, 6,134,676,1868,
9 | 0,0,0, 0, 1, 72,656,2672, 6237,
10 | 0,0,0, 0, 0, 30,482,2992,10376,21050,
11 | 0,0,0, 0, 0, 8,310,2592,13160,39824, 71666,
12 | 0,0,0, 0, 0, 2,151,2086,12862,56162,151878,245696,
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
N. J. A. Sloane, Jul 07 2015
EXTENSIONS
a(7)-a(10) inserted by Seiichi Manyama, Apr 04 2020
STATUS
approved