80178

Appears in sequences

• Number of (0,1)-matrices with n ones, no zero rows or columns, and distinct rows and columns.at n=7A321446
• a(n) is the first number k such that there are exactly n primes of the form k + A - B where A and B are sums of subsets of the prime factors of k.at n=21A345316
• Number of tilings of a 2 X n rectangle using 2 X 2 and 1 X 1 tiles and right trominoes.at n=11A353964