83075

Appears in sequences

• Number of ways of tiling a 2 X n rectangle with dominoes and trominoes.at n=13A019439
• Starting positions of strings of four 4's in the decimal expansion of Pi.at n=4A083616
• Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 110-111-011 pattern in any orientation.at n=13A146249