142296

Appears in sequences

• The triangular sequence of symmetrical Lah numbers (A111596, A008297) : L(n, m) = (-1)^n* binomial(n,k)*binomial(n-1, k-1)*( (n-k)! + (n-k)*(k-1)! ), with L(0,0) = 2, L(n,0) = L(n,n) = (-1)^n.at n=38A156786
• The triangular sequence of symmetrical Lah numbers (A111596, A008297) : L(n, m) = (-1)^n* binomial(n,k)*binomial(n-1, k-1)*( (n-k)! + (n-k)*(k-1)! ), with L(0,0) = 2, L(n,0) = L(n,n) = (-1)^n.at n=42A156786
• Triangle T(n,k) = A008297(n,k) + A008297(n,n-k+1), read by rows.at n=30A169653
• Triangle T(n,k) = A008297(n,k) + A008297(n,n-k+1), read by rows.at n=33A169653
• Number of nonnegative integers with property that their base 7/3 expansion (see A024640) has n digits.at n=12A245417