41324domain: NAppears in sequencesExpansion of e.g.f. cos(log(1+tanh(x))).at n=10A009022Indices where A092243 strictly changes sign.at n=8A269737Irregular triangle read by rows: T(n,k) is the number of flattened Catalan words of length n with exactly k symmetric valleys, with k >= 0.at n=46A372875