69852

Appears in sequences

• Number of nX3 binary arrays without the pattern 0 1 0 diagonally, vertically, antidiagonally or horizontally.at n=6A188689
• Number of nX7 binary arrays without the pattern 0 1 0 diagonally, vertically, antidiagonally or horizontally.at n=2A188693
• T(n,k)=Number of nXk binary arrays without the pattern 0 1 0 diagonally, vertically, antidiagonally or horizontally.at n=38A188695
• T(n,k)=Number of nXk binary arrays without the pattern 0 1 0 diagonally, vertically, antidiagonally or horizontally.at n=42A188695
• Expansion of e.g.f. 1/(1 - x * exp(x))^2.at n=6A377529
• Array read by ascending antidiagonals: A(n,k) = n! * [x^n] 1/(1 - x*exp(x))^k.at n=38A380841