OFFSET
1,2
EXAMPLE
...
Seq......1--3,4,5--2,3,4,5--7,8,9,10,11--6,7--
Run size:1....3.......4.........5.........2... (the sequence itself)
(the 3rd run starts with "2" which is the smallest unused integer so far. The 5th run starts with "6" for the same reason)
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Eric Angelini, Aug 29 2006
STATUS
approved