A228673 Number of permutations of [n] having a shortest ascending run of length 6.

1, 0, 0, 0, 0, 0, 923, 3430, 6004, 10008, 16014, 24750, 17153135, 139520497, 747544744, 2907714483, 9788905840, 30236892651, 2389382438831, 33146052783575, 291048293120402, 2033077226586965, 11881137473504364, 61473838487159979, 1656802388288612691

Offset

6,7

Links

Alois P. Heinz, Table of n, a(n) for n = 6..100

Crossrefs

Column k=6 of A064315.

Sequence in context: A235881 A051984 A232732 * A365469 A268849 A177810

Adjacent sequences: A228670 A228671 A228672 * A228674 A228675 A228676

Keyword

nonn

Author

Alois P. Heinz, Aug 29 2013

Status

approved