50720

Appears in sequences

• Number of n X 5 binary arrays with all 1s connected and a path of 1s from top row to lower right corner.at n=3A163014
• Number of n X 4 binary arrays with all 1's connected and a path of 1's from left column to lower right corner.at n=4A163021
• Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 3 5 6 or 7.at n=21A252377
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 233", based on the 5-celled von Neumann neighborhood.at n=7A270977
• Numbers k such that Bernoulli number B_{k} has denominator 230010.at n=18A295593
• Number of nX4 0..1 arrays with every element equal to 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=7A299310
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=58A299314
• a(n) is the number of 4 element sets of distinct integer sided strict rectangles that fill an n X n square.at n=46A384724
• Array read by antidiagonals: T(m,n) is the number of m X n binary arrays with all 1's connected and a path of 1's from top row to lower right corner.at n=31A391489