OFFSET
0,3
COMMENTS
Conjecture: every column or diagonal of slope +-1 is a permutation of the nonnegative numbers.
LINKS
Alois P. Heinz, Rows n = 0..200, flattened
EXAMPLE
Triangle begins:
..........0,
........1,2,3,
......2,0,4,1,5,
....3,1,5,6,0,4,2,
..4,5,0,2,1,7,3,6,8,
5,3,1,4,6,8,9,2,7,0,10,
...
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
N. J. A. Sloane, Jun 01 2017
EXTENSIONS
More terms from Alois P. Heinz, Jun 01 2017
STATUS
approved