OFFSET
1,2
COMMENTS
LINKS
FORMULA
EXAMPLE
Triangle begins:
1;
2, 1;
3, 2, 1;
5, 4, 3, 2;
7, 6, 5, 4, 2;
11, 10, 9, 8, 6, 4;
15, 14, 13, 12, 10, 8, 4;
22, 21, 20, 19, 17, 15, 11, 7;
30, 29, 28, 27, 25, 23, 19, 15, 8;
42, 41, 40, 39, 37, 35, 31, 27, 20, 12;
56, 55, 54, 53, 51, 49, 45, 41, 34, 26, 14;
77, 76, 75, 74, 72, 70, 66, 62, 55, 47, 35, 21;
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Omar E. Pol, Apr 27 2012
STATUS
approved