A269117 Number of sequences with 7 copies each of 1,2,...,n avoiding the pattern 12...n.

0, 0, 1, 1850672, 11690616534627, 246211478304046636024, 14919265746950486383601562197, 2285085934263252199073238394141449534, 798203800902002138190338074022806761037450631, 586566986371155102435901052470650279895779757665905993

Offset: 0

Author

Alois P. Heinz, Feb 19 2016

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..80

Crossrefs

Column k=7 of A269129.

Cf. A172603, A268850.

Formula

a(n) = A172603(n) - A268850(n).