27112

Appears in sequences

• Number of n X 3 0..2 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=43A201272
• G.f. satisfies: A(x) = Sum_{n>=0} x^n / Product_{k=1..n} (x + A(-x)^k).at n=14A221835
• Number of length 4 1..(n+2) arrays with no leading or trailing partial sum equal to a prime.at n=20A254207
• Number of nX4 0..1 arrays with every element equal to 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero.at n=15A298089
• Squares where knight moving to a lowest unvisited square on a spirally numbered board will have no available moves.at n=16A323714