OFFSET
1,7
COMMENTS
EXAMPLE
Triangle begins:
0;
0;
1, 0;
0, 0;
3, 0;
0, 1, 0;
5, 0, 0;
0, 0, 0;
7, 3, 0;
0, 0, 1, 0;
9, 0, 0, 0;
0, 5, 0, 0;
11, 0, 0, 0;
0, 0, 3, 0;
13, 7, 0, 1, 0;
0, 0, 0, 0, 0;
15, 0, 0, 0, 0;
0, 9, 5, 0, 0;
17, 0, 0, 0, 0;
0, 0, 0, 3, 0;
19, 11, 0, 0, 1, 0;
0, 0, 7, 0, 0, 0;
21, 0, 0, 0, 0, 0;
0, 13, 0, 0, 0, 0;
23, 0, 0, 5, 0, 0;
...
For n = 15 the 15th row of triangle is 13, 7, 0, 1, and the alternating sum is 13 - 7 + 0 - 1 = A235796(15) = 5.
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Omar E. Pol, Mar 20 2014
STATUS
approved