72175

Appears in sequences

• Numbers k such that 2*3^k - 5 is prime.at n=25A057910
• a(n) = [x^n] Product_{k=1..n} (1 - (n - k + 1)*x^k).at n=14A303189
• Number of ways to tile an n X n square with 1 X 1 squares and (n-2) X 2 vertical or horizontal rectangles.at n=8A347636