54648506

Appears in sequences

• Number of distributive lattices; also number of paths with n turns when light is reflected from 5 glass plates.at n=14A006358
• Bottom line of 5-wave sequence A038201, also bisection of A006358.at n=7A038339
• Expansion of x + 1/(-x - 1/(-x - 1/(-x - 1/(-x - 1/(-x + 1))))).at n=14A373569