OFFSET
1,10
EXAMPLE
Tetrangle begins:
1 0 0 0 0 0
0 1 0 1 0 1 0 1 0 1
0 1 2 0 1 2 0 2 4 0 2 4
0 1 2 3 0 1 5 4 0 2 10 8
0 1 5 5 5 0 1 9 13 7
0 1 5 12 9 7
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Gus Wiseman, Nov 09 2018.
STATUS
approved