122128

Appears in sequences

• Number of binary strings of length n with no substrings equal to 0010 0101 or 1001.at n=17A164493
• Number of n X 2 nonnegative integer arrays with upper left 0 and every value within 3 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.at n=37A252932