781884

Appears in sequences

• a(n) is the number of numbers m < 10^n for which there is at least one k such that k + reverse(k) = m.at n=9A088180
• Number of (n+2)X4 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally or vertically, exactly one way.at n=2A204411
• Number of (n+2)X5 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally or vertically, exactly one way.at n=1A204412
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally or vertically, exactly one way.at n=7A204417
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally or vertically, exactly one way.at n=8A204417