OFFSET
1,2
COMMENTS
The same as A056538 but with all terms multiplied by -1 from the second column.
The sum of row n gives the deficiency of n.
EXAMPLE
Written as an irregular triangle in which row n has length A000005(n) the sequence begins:
1;
2, -1;
3, -1;
4, -2, -1;
5, -1;
6, -3, -2, -1;
7, -1;
8, -4, -2, -1;
9, -3, -1;
10, -5, -2, -1;
11, -1;
12, -6, -4, -3, -2, -1;
...
CROSSREFS
KEYWORD
sign,tabf
AUTHOR
Omar E. Pol, Jan 03 2014
STATUS
approved