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A180388 Number of permutations of 1..n with number of rises (p(i+1)>p(i)) different from number of rises in the inverse permutation 2
0, 0, 0, 2, 24, 228, 2088, 19732, 197890, 2131060, 24729108, 309027560, 4148115048, 59611031304 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..14.

CROSSREFS

A180388(n) + A180389(n) = n! = A000142(n).

Sequence in context: A174668 A121213 A147538 * A221653 A219205 A025131

Adjacent sequences:  A180385 A180386 A180387 * A180389 A180390 A180391

KEYWORD

nonn

AUTHOR

Leroy Quet, D. S. McNeil and R. H. Hardin in the Sequence Fans Mailing List Sep 01 2010

STATUS

approved

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Last modified May 21 19:04 EDT 2013. Contains 225504 sequences.