45344

Appears in sequences

• Triangle T(n,k) is the number of restricted growth strings (RGS) of set partitions of {1..n} that have a decrease at index k (1<=k<n).at n=44A056862
• Expansion of (1/2)*(exp(2*x)-1)*exp(exp(x)-1).at n=8A059606
• For even n, a(n) = a(n-2) + a(n-1) + 2^(n/2-2), n>2. For odd n, a(n) = a(n-2) + a(n-1).at n=22A079289
• G.f. A(x) = (1 + x*A(2*x))^2.at n=5A135868
• Number of numbers in row n of the array at A243851.at n=24A243853