56057

Appears in sequences

• Strong pseudoprimes to base 11.at n=17A020237
• Highest m such that prime(m) divides the n-th pandigital (A050278).at n=23A071924
• Number of Motzkin n-paths with an even number of up steps.at n=14A107587
• a(n) = n*(7*n^2 - 3*n - 1)/3.at n=29A214659
• E.g.f. A(x) satisfies A(x) = exp( sinh(x * A(x)) / A(x) ).at n=8A381147