OFFSET
1,2
EXAMPLE
The triangle begins:
0
3 16
8 35 72
15 62 125 212
24 95 190 319 476
35 136 269 450 669 936
.
a(2) = T(1,2) = 3 = 6/2 because the following 6 triangles of area 1 can be made by selecting 3 grid points from the [0,1]X[0,2] rectangle:
(0,0) (0,2) (1,0),
(0,0) (0,2) (1,1),
(0,0) (0,2) (1,2),
(0,0) (1,0) (1,2),
(0,1) (1,0) (1,2),
(0,2) (1,0) (1,2).
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Hugo Pfoertner, Oct 16 2018
STATUS
approved