109200

Appears in sequences

• Triangle read by rows, the Bell transform of the triple factorial numbers A007559(n+1) without column 0.at n=32A035469
• Reduced denominators of the coefficients in a series expansion for Gamma[x].at n=22A054380
• Triangle T(n,k) read by rows: number of labeled trees with n nodes and k leaves, n >= 2, 2 <= k <= n.at n=23A055314
• Number of labeled trees with n nodes and 4 leaves.at n=3A055316
• Number of functions f:{1,2,...,n}->{1,2,...,n} such that Im(f) contains 4 fixed elements.at n=3A126780
• Triangular sequence of coefficients of the expansion of a degenerate partition of Chebyshev U(x,n);A053117 and Hermite H(x,n);A060821 functions: 1) f(x,t)=1/(1-2*x*t+t^2); 2) g(x,t)=Exp[2*x*t-t^2]; to give: p(x,t)=Exp[2*x*t-t^2]/(1-2*x*t+t^2).at n=36A137862
• a(n)=7*a(n-1)+a(n-2), n>2 ; a(0)=1, a(1)=6, a(2)=42 .at n=6A155196
• Triangular array T(n,k): functions f:{1,2,...,n}-> {1,2,...,n} such that each of k fixed (but arbitrary) elements are in the image of f.at n=32A174551
• Numbers with prime factorization pqrs^2t^4.at n=6A190384
• Number of (w,x,y,z) with all terms in {1,...,n} and w>2x and y>=3z.at n=41A212519
• Number of (w,x,y,z) with all terms in {1,...,n} and w>=2x and y>3z.at n=41A212522
• Number of undirected labeled graphs on n+3 nodes with exactly n cycle graphs as connected components.at n=12A215773
• Number of (n+1)X(1+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=5A237958
• Number of (n+1)X(6+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=0A237963
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=15A237965
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=20A237965
• Number of (n+1) X (1+1) 0..2 arrays with the upper median minus the lower median of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=5A238039
• Number of (n+1)X(6+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=0A238044
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=15A238046
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=20A238046