3149650

Appears in sequences

• Number of n X n arrays of squares of integers with every 3X3 subblock summing to 9.at n=6A159209
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-1) + 2, where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4.at n=27A293765