1988549

Properties

Appears in sequences

• Number of lower triangles of an n X n 0..1 array with new values introduced in row major order 0..1 and no element equal to more than two horizontal or vertical neighbors.at n=6A194569
• T(n,k)=Number of lower triangles of an n X n 0..k array with new values introduced in row major order 0..k and no element equal to more than two horizontal or vertical neighbors.at n=27A194576
• Prime numbersat n=148130