A183268 Number of singly defective permutations of 1..n+8 with exactly 5 maxima.

249984, 14548480, 469942528, 11190054912, 219921448448, 3786548183040, 59211819110400, 861044410941440, 11836043861688320, 155624676666900480, 1974466952368095232, 24334201908725022720, 292836028257957445632, 3454921061964353372160, 40092721917664469975040

Offset

1,1

Comments

A singly defective permutation omits one value and repeats another value.

Links

Andrew Howroyd, Table of n, a(n) for n = 1..200

Example

Some solutions for n=2 with 5 maxima:
(6,1,2,9,7,9,4,10,5,8) (6,1,5,3,10,9,4,8,2,4) (6,1,3,2,10,4,9,3,5,7).

Crossrefs

Column 5 of A183270.

Sequence in context: A250516 A249316 A018236 * A043655 A271144 A058004

Adjacent sequences: A183265 A183266 A183267 * A183269 A183270 A183271

Keyword

nonn

Author

R. H. Hardin, Jan 03 2011

Extensions

Terms a(8) and beyond from Andrew Howroyd, May 12 2020

Status

approved