2430355

Appears in sequences

• a(n) = 2*a(n-1) + (n-1)*a(n-2).at n=12A005425
• Number of independent subsets of nodes in graph formed from n-fold subdivision of 11-dimensional simplex.at n=3A027738
• Values of Laguerre polynomials: a(n) = 2^n*n!*LaguerreL(n,-1/2,-2).at n=6A093620