A singly defective permutation omits one value and repeats another value.
Andrew Howroyd, Table of n, a(n) for n = 1..200
Some solutions for n=2 with 4 maxima:
(7,5,3,6,1,5,2,8) (7,1,8,4,3,4,2,6) (6,3,7,2,8,3,5,4) (6,1,5,2,4,3,3,7).
Column 4 of A183270.
Sequence in context: A083638 A237553 A250467 * A258231 A257763 A260293
Adjacent sequences: A183264 A183265 A183266 * A183268 A183269 A183270
R. H. Hardin, Jan 03 2011
Terms a(10) and beyond from Andrew Howroyd, May 12 2020