87680

Appears in sequences

• arcsin(sec(x)*tanh(x))=x+2/3!*x^3+40/5!*x^5+1192/7!*x^7+87680/9!*x^9...at n=4A012834
• Number of (n+1) X (1+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, vertically, diagonally or antidiagonally.at n=4A232670
• Number of (n+1)X(5+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, vertically, diagonally or antidiagonally.at n=0A232674
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, vertically, diagonally or antidiagonally.at n=10A232677
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, vertically, diagonally or antidiagonally.at n=14A232677
• Number of length n+3 0..7 arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.at n=13A248536
• Number of (n+2) X (5+2) 0..1 arrays with no 3 x 3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum.at n=12A258891