22128

Appears in sequences

• Number of n-step prudent self-avoiding walks on honeycomb lattice.at n=15A192871
• Triangle of coefficients of polynomials u(n,x) jointly generated with A209169; see the Formula section.at n=50A209168
• Triangular array read by rows. T(n,k) is the number of ternary length-n words in which the longest run of consecutive 0's is exactly k; n>=0, 0<=k<=n.at n=57A209240
• Number of (n+1)X(2+1) 0..3 arrays with the maximum minus the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=1A237906
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum minus the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=4A237911
• Number of nX5 binary arrays with rows and columns lexicographically nondecreasing and column sums nonincreasing.at n=6A266467
• T(n,k) = number of n X k binary arrays with rows and columns lexicographically nondecreasing and column sums nonincreasing.at n=61A266470
• Number of 7Xn binary arrays with rows and columns lexicographically nondecreasing and column sums nonincreasing.at n=4A266474
• Take apart the sides of each of the integer-sided triangles with perimeter n (at their vertices) and rearrange them orthogonally in 3-space so that their endpoints coincide at a single point. a(n) is the total surface area of all rectangular prisms enclosed in this way.at n=35A308236
• Expansion of e.g.f. Product_{k>=1} (1 + arctan(x^k)).at n=7A330543
• Numbers x such that there exist three integers 0<x<=y, z>0 and w>0 such that sigma(x)^3 = sigma(y)^3 = x^3 + y^3 + z^3 + w^3.at n=33A385397