OFFSET
1,4
COMMENTS
Antidiagonals sum up to A000984.
EXAMPLE
Example with 0's added:
0,1,1,2,4,8,..
0,1,2,4,8,16,..
0,2,6,14,30,..
Row 2 (binomial): 0+1=1,1+1=2,...
Row 3 (trinomial): 0+1+1=2,2+2+2=6,6+4+4=14...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Mark Dols, Dec 15 2009
STATUS
approved