OFFSET
0,4
COMMENTS
Row lengths are in A214857.
LINKS
Alois P. Heinz, Rows n = 0..200, flattened
EXAMPLE
Triangle begins:
0;
1, 0;
4, 3, 1;
9, 8, 6, 3;
16, 15, 13, 10, 6, 1;
25, 24, 22, 19, 15, 10, 4;
36, 35, 33, 30, 26, 21, 15, 8, 0;
49, 48, 46, 43, 39, 34, 28, 21, 13, 4;
64, 63, 61, 58, 54, 49, 43, 36, 28, 19, 9;
81, 80, 78, 75, 71, 66, 60, 53, 45, 36, 26, 15, 3;
100, 99, 97, 94, 90, 85, 79, 72, 64, 55, 45, 34, 22, 9;
121, 120, 118, 115, 111, 106, 100, 93, 85, 76, 66, 55, 43, 30, 16, 1;
...
MATHEMATICA
Table[s = {}; k = 0; While[tri = k*(k + 1)/2; tri <= n^2, AppendTo[s, n^2 - tri]; k++]; s, {n, 0, 10}] (* T. D. Noe, Mar 11 2013 *)
CROSSREFS
KEYWORD
nonn,easy,tabf
AUTHOR
Philippe Deléham, Mar 09 2013
STATUS
approved