A322061 Number of permutations of n copies of 1..10 introduced in order 1..10 with no element equal to another within a distance of 1.

1, 234615096, 152466248712342181, 156690501089429126239232946, 209141786137614009701487336108267723, 330586922756304429697714946501284146322953006, 588242979144354234332728292738493758656488275002948671

Offset: 1

Author

Seiichi Manyama, Nov 25 2018

Keywords

• nonn

Links

• Seiichi Manyama, Table of n, a(n) for n = 1..100

Crossrefs

Column 10 of A322013.

Formula

a(n) ~ 625 * 9^(10*n) / (5350883328 * (Pi*n)^(9/2)). - Vaclav Kotesovec, Nov 25 2018