A269119 Number of sequences with 9 copies each of 1,2,...,n avoiding the pattern 12...n.

0, 0, 1, 123700631, 88094027572412735, 327305762373962750213344469, 5055320871467502855510583170028558565, 268568796699793322439632085075432144258760935329, 42306180849230219227948320734391059740469458805515898752511

Offset: 0

Author

Alois P. Heinz, Feb 19 2016

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..65

Crossrefs

Column k=9 of A269129.

Cf. A172613, A268852.

Formula

a(n) = A172613(n) - A268852(n).