243600

Appears in sequences

• Product of first n Pell numbers Pell(1), ... , Pell(n).at n=5A256832
• a(n) is the smallest number which has a water-capacity of n.at n=30A275339
• Number of 3-cycles in the n X n rook graph.at n=29A288961
• a(n) is the number of primes q less than primorial(n) having k = 2 as the least exponent such that q^k == 1 (mod primorial(n)).at n=21A336016
• a(n) = 1*binomial(n,2) + 3*binomial(n,3) + 6*binomial(n,4) + 10*binomial(n,5).at n=21A361474
• Expansion of e.g.f. (1+x) * exp(x^2*(1+x)^2).at n=8A387969