OFFSET
0,5
COMMENTS
sigma(1) = n and sigma(n) = 1.
EXAMPLE
In case of n = 4.
----+-------------
1 | [4, 2, 3, 1]
2 | [4, 3, 2, 1]
In case of n = 5.
----+----------------
1 | [5, 3, 2, 4, 1]
2 | [5, 3, 4, 2, 1]
3 | [5, 4, 2, 3, 1]
4 | [5, 4, 3, 2, 1]
PROG
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Mar 01 2020
EXTENSIONS
a(16)-a(24) from Giovanni Resta, Mar 03 2020
STATUS
approved