151291

Appears in sequences

• Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 2 X n array.at n=26A220011
• G.f. A(x) satisfies A(x) = 1 + x^5*A(x)^5 / (1 - x*A(x)).at n=27A365702