40864

Appears in sequences

• Number of partitions of n that do not contain 8 as a part.at n=42A027342
• Number of self-avoiding paths with n steps on a triangular lattice in the strip Z x {0,1}.at n=12A100691
• a(n) = the number of permutations (p(1), p(2), ..., p(2n+1)) of (1, 2, ..., 2n+1) where, for each k (2 <= k <= 2n+1), the sign of (p(k) - p(k-1)) equals the sign of (p(2n+2-k) - p(2n+3-k)).at n=4A137783
• Number of binary strings of length n with equal numbers of 000 and 011 substrings.at n=18A164139
• a(n) = Sum_{k = 0..n} binomial(n, k)^2*binomial(n+k, k)*binomial(3*n+2*k, n).at n=3A374605