19568

Appears in sequences

• T(n,k) is the number of n-step one or two collinear space at a time queen's tours on a k X k board summed over all starting positions.at n=31A187027
• Number of 4-step one or two collinear space at a time queen's tours on an n X n board summed over all starting positions.at n=4A187029
• Sum of terms in level n of TRIP - Stern sequence associated with permutation triple (e,13,23).at n=9A278615
• Expansion of Product_{k>=1} (1-x^(3*k-1))^(3*k-1) * (1-x^(3*k-2))^(3*k-2).at n=30A285247
• Largest number k that is not the sum of 3 squares and a nonnegative (2n+5)-th power.at n=1A299796
• G.f. A(x) satisfies: [x^n] (1+x)^((n+1)^3) / A(x) = 0 for n>0.at n=3A304398
• Triangle read by rows: T(n,k) is the number of series-reduced rooted trees whose leaves are sets of colors with a total of n elements using exactly k colors.at n=18A330763
• Number of integer partitions of n such that neither the run-lengths nor the negated run-lengths are unimodal.at n=43A332640
• a(n) = 3*a(n-1) - 2*a(n-2) + 5*a(n-3) starting with 1, 2, 3.at n=10A383873
• Numbers whose binary expansion consists of alternating runs of 1's and 0's where each run of 0's is exactly one longer than the preceding run of 1's, and the expansion ends with a 0-run.at n=38A387269