OFFSET
1,2
COMMENTS
A permutation of the positive integers. See the comment at A183079.
FORMULA
EXAMPLE
Top 5 rows:
1
2
3 4
6 5 8 7
11 12 9 10 16 15 14 13.
From row 3 to row 4: 3->(6,5) and 4->(8,7). For all such pairs, the 1st component is in L and the 2nd, in U.
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Dec 24 2010
STATUS
approved