24054

Appears in sequences

• Number of cubefree words of length n on two letters.at n=24A028445
• a(n) = n*(n+5)*(50+45*n+n^2)/24.at n=18A101861
• Number of unordered pairs of distinct length-n binary words having the same number of 1's.at n=8A108958
• a(n) = 3*n*(n^2 + 3*n + 4).at n=19A280304
• E.g.f. satisfies A(x) = 1/(1 - x * A(x))^(x * A(x)^3).at n=6A356787