384111

Appears in sequences

• Number of bracelets (turnover necklaces) of n beads of 2 colors, 11 of them black.at n=17A032282
• E.g.f. exp(x)*(Bessel_I(2,2*x) - Bessel_I(3,2*x) + Bessel_I(4,2*x)).at n=14A116408