OFFSET
1,3
LINKS
Seiichi Manyama, Antidiagonals n = 1..140, flattened
EXAMPLE
Square array begins:
1, 1, 1, 1, 1, 1, ...
3, 7, 21, 71, 253, 925, ...
6, 22, 105, 566, 3256, 19489, ...
10, 50, 325, 2386, 18760, 154085, ...
15, 95, 780, 7231, 71890, 747860, ...
21, 161, 1596, 17857, 214396, 2695652, ...
28, 252, 2926, 38332, 539028, 7941438, ...
36, 372, 4950, 74292, 1197036, 20212950, ...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Seiichi Manyama, Jan 23 2019
STATUS
approved