372372

Appears in sequences

• Erroneous version of A062239, numbers n with property that every digit is a prime factor of n.at n=21A066483
• Triangle read by rows: the coefficient [x^k] of the polynomial Product_{i=1..n} (4^(i-1)-x), in row n and column 0 <= k <= n.at n=25A157784
• Second elementary symmetric function of the first n terms of (1,4,16,64,256,...).at n=4A203244
• Number of ways an n-set can be written as the union of 2 sets each with 4 or more elements and whose intersection contains exactly 3 elements.at n=9A349415