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.

0, 0, 0, 0, 2, 24, 228, 2088, 19732, 197890, 2131060, 24729108, 309027560, 4148115048, 59611031304, 913915160628, 14897443573244, 257369478424890, 4698494631208500, 90393611677083892, 1828153614233855024, 38778554791649355232, 860921156414834534368

Offset: 0

Author

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

Keywords

• nonn

Links

• Vaclav Kotesovec, Table of n, a(n) for n = 0..200

Crossrefs

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

Extensions

More terms from Vaclav Kotesovec, Jun 10 2015

a(0)=0 prepended by Alois P. Heinz, Jun 10 2015