271488

Appears in sequences

• Triangle of numbers where T(n,k) is the number of k-dimensional faces on a partially truncated n-cube, 0 <= k <= n.at n=59A271316
• Number of length-n strings w over a 4-letter alphabet with the property that if x is a subword of w and |x| >= 2, then x reversed is not a subword of w.at n=25A330011