882318

Appears in sequences

• Matrix cube of triangle W = A136231; also equals P^9, where P = triangle A136220.at n=31A136238
• Number of lower triangles of an n X n 0..3 array with no element differing from any of its horizontal or vertical neighbors by more than one.at n=4A194926
• T(n,k)=Number of lower triangles of an n X n 0..k array with no element differing from any of its horizontal or vertical neighbors by more than one.at n=25A194931
• Number of lower triangles of a 5 X 5 0..n array with no element differing from any of its horizontal or vertical neighbors by more than one.at n=2A194934