OFFSET
1,5
EXAMPLE
The first rows of this triangular table are:
1;
1, 1;
1, 2, 2;
4, 4, 5, 6;
12, 14, 16, 19, 22;
55, 59, 65, 73, 82, 94;
...
CROSSREFS
KEYWORD
AUTHOR
Antti Karttunen, Oct 18 2013
STATUS
approved