56406

Appears in sequences

• Number of ways of covering a 2n X 2n lattice by 2n^2 dominoes with exactly 4 horizontal (or vertical) dominoes.at n=5A038758
• A089320(n)/n.at n=7A089321
• Squarefree oblong (pronic) numbers having an odd number of prime factors.at n=33A098827
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2) + 2n, where a(0) = 1, a(1) = 2, b(0) = 3.at n=18A294538
• Oblong numbers which are products of five distinct primes.at n=15A359304