4282396668

Appears in sequences

• Number of n-tuples where each entry is chosen from the subsets of {1,2,3,4} such that the intersection of all n entries contains exactly one element.at n=9A128865
• Number of 3Xn 0..1 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.at n=18A267668