OFFSET
1,4
COMMENTS
EXAMPLE
Triangle begins:
0;
1, -1;
2, 0, -2;
3, 1, 0, -1, -3;
4, 2, 1, 0, -1, -2, -4;
5, 3, 2, 1, 1, 0, -1, -1, -2, -3, -5;
6, 4, 3, 2, 2, 1, 0, 0, 0, -1, -2, -2, -3, -4, -6;
...
CROSSREFS
KEYWORD
sign,tabf
AUTHOR
Omar E. Pol, Dec 12 2019
EXTENSIONS
Edited by N. J. A. Sloane, Sep 15 2020
STATUS
approved