43106

Appears in sequences

• Number of n-step self-avoiding walks on a Manhattan lattice.at n=18A006744
• Anagrexpo integers: integers N that exactly reproduce their set of digits when we form the set of exponentiation of pairs of adjacent digits, from left to right.at n=45A297627
• Number of permutations p of [n] satisfying Sum_{i=1..n} (p(i)-i)^2 = n*(n+1)/2.at n=11A391511
• Number of one-sided polybends with n cells.at n=18A392390
• a(n) = Sum_{k=0..floor(2*n/9)} binomial(2*n-7*k,2*k).at n=20A392399