41212

Appears in sequences

• Number of n X 3 nonnegative integer arrays with upper left 0 and every value within 2 of its city block distance from the upper left and every value increasing by 0 or 1 with every step right or down.at n=12A252815
• Number of length 5 1..(n+2) arrays with no leading or trailing partial sum equal to a prime and no consecutive values equal.at n=13A254222