16768860

Appears in sequences

• Number of triangles similar to their n-th pedal, and not similar to any k-th pedal for k < n.at n=11A102536
• Number of 3 X n binary matrices that are "primitive"; that is, they cannot be expressed as a "tiling" by a smaller matrix.at n=5A290754
• Number of 5 X n binary matrices that are "primitive"; that is, they cannot be expressed as a "tiling" by a smaller matrix.at n=3A291071
• Table read by antidiagonals where A(n,k) is the number of n X k binary arrays in which both the sequence of rows and the sequence of columns are (independently) aperiodic.at n=39A323862
• Table read by antidiagonals where A(n,k) is the number of n X k binary arrays in which both the sequence of rows and the sequence of columns are (independently) aperiodic.at n=41A323862