-2840

Appears in sequences

• Matrix inverse of triangle A055898.at n=36A055905
• Column 0 of triangle A055905.at n=8A055906
• Numerator of Hermite(n, 2/11).at n=3A159281
• E.g.f. L(x) of aerated sequence satisfies: L(x) = Integral 1 / sqrt( cosh(2*L(x)) ) dx.at n=3A290879