48114

Appears in sequences

• a(n) = n^2*(5*n-3)/2.at n=27A006597
• Number of strongly self-dual planar maps with 2n edges.at n=5A006849
• "BFK" (reversible, size, unlabeled) transform of 2,2,2,2...at n=21A032043
• Numbers that have exactly nine prime factors counted with multiplicity (A046312) whose digit reversal is different and also has 9 prime factors (with multiplicity).at n=6A109029
• X-values of solutions to the equation 3(X-Y)^4 - 2*X*Y = 0 with X >= Y.at n=3A123278
• Numbers k such that phi(tau(k)) = sopf(k).at n=40A173326
• Number of right triangles on a (n+1)X6 grid.at n=33A189810
• Triangular array: the fusion of polynomial sequences P and Q given by p(n,x) = (2x+1)^n and q(n,x) = (2x+1)^n.at n=53A193730
• Mirror of the triangle A193730.at n=46A193731
• a(n) = Sum_{k=0..3^(n-1)} gcd(k,3^(n-1)) for n > 0 and a(0) = 1.at n=9A199923
• Triangle of coefficients of polynomials v(n,x) jointly generated with A209996; see the Formula section.at n=53A209998
• 3X3X3 triangular graph coloring a rectangular array: number of nX2 0..5 arrays where 0..5 label nodes of a graph with edges 0,1 0,2 1,2 1,3 1,4 2,4 3,4 2,5 4,5 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.at n=4A223212
• 3X3X3 triangular graph coloring a rectangular array: number of nX5 0..5 arrays where 0..5 label nodes of a graph with edges 0,1 0,2 1,2 1,3 1,4 2,4 3,4 2,5 4,5 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.at n=1A223215
• T(n,k)=3X3X3 triangular graph coloring a rectangular array: number of nXk 0..5 arrays where 0..5 label nodes of a graph with edges 0,1 0,2 1,2 1,3 1,4 2,4 3,4 2,5 4,5 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.at n=16A223218
• T(n,k)=3X3X3 triangular graph coloring a rectangular array: number of nXk 0..5 arrays where 0..5 label nodes of a graph with edges 0,1 0,2 1,2 1,3 1,4 2,4 3,4 2,5 4,5 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.at n=19A223218
• Expansion of (1 - (1 - 27*x)^(1/3)) / (9*x).at n=4A254282
• Partial sums of A299287.at n=26A299288
• a(n) = a(n-1) + p(n) if p(n) > a(n-1), otherwise a(n) = a(n-1) - p(n), where p is the partition function A000041 (assuming a(n) = 0 for n < 0).at n=39A331165
• Numbers k that divide the k-th companion Pell number.at n=43A372899