OFFSET
0,2
EXAMPLE
Triangle begins:
1;
2,1;
4,4,1;
6,8,6,1;
13,14,14,8,1;
26,47,26,22,10,1;
33,58,115,42,32,12,1;
75,133,102,229,62,44,14,1;
101,292,393,158,401,86,58,16,1;
172,285,791,921,226,643,114,74,18,1; ...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Paul D. Hanna, Apr 13 2005
STATUS
approved