OFFSET
1,1
COMMENTS
The triangle in this rearrangement contains 1, 1, 2, 2, 3, 3, 4, 4,... = floor((n+1)/2) entries in row n.
The first differences between terms in row n are A005843(n+2).
EXAMPLE
3;
8;
5,15;
12,24;
7,21,35;
16,32,48;
CROSSREFS
KEYWORD
nonn,easy,tabf
AUTHOR
Paul Curtz, Aug 31 2008
STATUS
approved