1382958544

Appears in sequences

• a(n) = B(n) - 1, where B(n) = Bell numbers, A000110.at n=13A058692
• Number of arrays of n 0..13 integers with new values introduced in order 0..13 but otherwise unconstrained.at n=14A203644
• Number of primitive (aperiodic) palindromic structures of length n using an infinite alphabet.at n=28A284841
• Number of primitive (period n) periodic palindromic structures of length n using an infinite alphabet.at n=29A285042