18475776

Appears in sequences

• Sixth column of triangle A067402.at n=5A067406
• Number of different ways n! can be represented as the difference of two squares; also, for n >= 4, half the number of positive integer divisors of n!/4.at n=36A138196
• Number of (n+2)X(n+2) symmetric binary matrices without the pattern 1 1 1 antidiagonally.at n=4A190416
• Chromatic invariant of the n X n black bishop graph.at n=5A295170
• Chromatic invariant of the n X n white bishop graph.at n=4A295217