23675

Appears in sequences

• Expansion of x*(x^3+2*x^2+3*x-1)/(x+1)^5.at n=20A119515
• Iterates of A122227, starting from A122227(5)=18.at n=7A122234
• Number of (n+1) X (n+1) 0..2 arrays with the upper median plus the lower median minus the minimum of every 2 X 2 subblock equal.at n=2A236781
• Number of (n+1)X(3+1) 0..2 arrays with the upper median plus the lower median minus the minimum of every 2X2 subblock equal.at n=2A236784
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the upper median plus the lower median minus the minimum of every 2X2 subblock equal.at n=12A236789
• Number of paths from (0,0) to (n,0), with vertices (i,k) satisfying 0 <= k <= 3, consisting of segments given by the vectors (1,1), (1,2), (1,-1).at n=18A247323
• Number of tilings of an 8 X n rectangle using 2*n copies of the disconnected shape [oo__oo].at n=19A323352