159573

Appears in sequences

• Starting positions of strings of four 1's in the decimal expansion of Pi.at n=21A083602
• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 2X3 U in any orientation.at n=16A146058
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, 0), (1, 0, 1), (1, 1, -1)}.at n=11A148823