OFFSET
1,5
COMMENTS
The beginning elements of the permutation are 4, (either 1 or 2), ...
The total number of permutations with this property is given in A067957.
LINKS
Matthijs Coster, Sequences
Matthijs Coster, Problem 2001/3-A of the Universitaire Wiskunde Competitie, Nieuw Arch. Wisk. 5/3 (2002), 92-94.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Matthijs Coster, Apr 26 2004
STATUS
approved