311278

Appears in sequences

• Expansion of 1/((1+x)*(1-x)^10).at n=13A001781
• Number of 3 X n integer matrices (m_{i,j}) such that m_{1,1}=0, m_{3,n}=2, and all rows, columns, and falling diagonals are (weakly) monotonic without jumps of 2.at n=20A323967