OFFSET
0,5
COMMENTS
T(0,2), T(1,1), T(1,2), T(1,3), ... T(n,n), T(n,n+1), T(n,n+2), ... is the sequence A140298.
FORMULA
EXAMPLE
Square array begins:
1, 1, 1, 1, 0, 0, 0, 0, 0, ...
1, 2, 3, 4, 4, 0, 0, 0, 0, ...
0, 2, 5, 9, 13, 13, 0, 0, 0, ...
0, 0, 5, 14, 27, 40, 40, 0, 0, ...
0, 0, 0, 14, 41, 81, 121, 121, 0, ...
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Philippe Deléham, Mar 13 2013
STATUS
approved