1895040

Appears in sequences

• a(n) = L(n) * n! where L(n) are the Lucas numbers.at n=8A100404
• Number of permutations of 1..n with no adjacent pair summing to n+4.at n=10A173844
• Number of permutations of 1..n with no adjacent pair summing to n+5.at n=10A173845
• Number of permutations of 5..n+4 with no element divisible by an adjacent element.at n=9A178848