OFFSET
1,2
COMMENTS
FORMULA
Let 1->21; 2->321; 3->4321; 4->54321; 5->654321; .... the table is defined by : row 1 :1; row 1->row 2 :2, 1; row 2->row 3 :3, 2, 1, 2, 1; row 3->row 4 :4, 3, 2, 1, 3, 2, 1, 2, 1, 3, 2, 1, 2, 1; ...row n->row n+1.
CROSSREFS
KEYWORD
AUTHOR
Philippe Deléham, Dec 21 2003
STATUS
approved