272917

Properties

Appears in sequences

• Exponential convolution of A000670(n), with A000670(0)=0, with the sequence of all ones alternating in sign.at n=8A089677
• Matrix inverse of triangle A227342.at n=38A227343
• a(n) = n! * Sum_{k=0..floor(n/3)} (n/6)^k * binomial(n-2*k,k)/(n-2*k)!.at n=9A362173
• Prime numbersat n=23879