69280

Appears in sequences

• a(n) = n! * Sum_{k=1..n-1} 1/k!.at n=8A038156
• Larger of Smith brothers.at n=33A050220
• Multiply by 1, add 1, multiply by 2, add 2, etc.at n=16A082459
• Triangle read by rows: T(i,j) for the recurrence T(i,j) = (T(i-1,j) + 1)*i.at n=29A121662
• Number of L-shaped tiles in all tilings of a 3 X n board with 1 X 1 and L-shaped tiles (where the L-shaped tiles cover 3 squares).at n=5A127869
• Triangle read by rows: T(m,n) = Sum_{i=1..n} P(m,i) where P(m,n) = m!/(m-n)! is the number of permutations of m items taken n at a time, for 1 <= n <= m.at n=34A285268
• Expansion of e.g.f. (exp(x)-x)*x/(1-x).at n=8A296964
• Number of cells in a regular 7-gon after n generations of mitosis.at n=44A349808