202841

Properties

Appears in sequences

• List of sets of four consecutive primes in arithmetic progression with common difference 18.at n=17A033450
• Number of ways to tile an n X n square with 1 X 1 and 2 X 2 tiles.at n=7A063443
• Number of ways to tile a 7 X n rectangle with 1 X 1 and 2 X 2 tiles.at n=7A063651
• Sum of all terms on the two principal diagonals of a 2n+1 X 2n+1 square spiral.at n=33A114254
• Number of n X n binary matrices, symmetric under horizontal and vertical reflection, with no more than 1 one in any 2 X 2 subblock.at n=11A141483
• Number of n X n binary matrices, symmetric under horizontal and vertical reflection, with no more than 1 one in any 2 X 2 subblock.at n=14A141483
• T(n,k) = Half the number of (n+1) X (k+1) 0..2 arrays with every 2 X 2 subblock diagonal sum differing from its antidiagonal sum by more than 2.at n=40A179618
• Number of n X 5 0..1 arrays with every element equal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.at n=5A299218
• Number of nX6 0..1 arrays with every element equal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.at n=4A299219
• T(n,k) = Number of n X k 0..1 arrays with every element equal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.at n=49A299221
• T(n,k) = Number of n X k 0..1 arrays with every element equal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.at n=50A299221
• Prime numbersat n=18212