145760

Appears in sequences

• Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 9 (most significant digit on right).at n=10A029502
• Number of (n+2)X3 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..3 introduced in row major order.at n=1A204526
• Number of (n+2)X4 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..3 introduced in row major order.at n=0A204527
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..3 introduced in row major order.at n=1A204530
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..3 introduced in row major order.at n=2A204530
• Expansion of e.g.f. Product_{k>0} 1/(1-tan(x)^k).at n=7A335627