69784

Appears in sequences

• Number of walks on square lattice.at n=7A005567
• Integer part of ((4th elementary symmetric function of 2,3,...,n+4)/(2nd elementary symmetric function of 2,3,...,n+4)).at n=39A024181
• Triangle of numbers arising in enumeration of walks on square lattice.at n=39A052175
• Row sums of unsigned triangle A136656 and also of triangle 2*A136657.at n=6A136658
• Number of n-bead necklaces labeled with numbers -7..7 not allowing reversal, with sum zero.at n=5A208596
• Number of 6-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero.at n=6A208600
• Unchanging value maps: number of nX4 binary arrays indicating the locations of corresponding elements unequal to no horizontal, antidiagonal or vertical neighbor in a random 0..1 nX4 array.at n=6A219152
• Unchanging value maps: number of nX7 binary arrays indicating the locations of corresponding elements unequal to no horizontal, antidiagonal or vertical neighbor in a random 0..1 nX7 array.at n=3A219155
• T(n,k)=Unchanging value maps: number of nXk binary arrays indicating the locations of corresponding elements unequal to no horizontal, antidiagonal or vertical neighbor in a random 0..1 nXk array.at n=48A219156
• T(n,k)=Unchanging value maps: number of nXk binary arrays indicating the locations of corresponding elements unequal to no horizontal, antidiagonal or vertical neighbor in a random 0..1 nXk array.at n=51A219156
• A strong divisibility sequence associated with the algebraic integer 2 + i.at n=59A230369
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 825", based on the 5-celled von Neumann neighborhood.at n=39A273581
• Number of 2 X 2 matrices having entries in {0,1,...,n} and determinant in the closed interval [-n,n] with no entry repeated.at n=29A279063
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of e.g.f.: exp(1/(1-x)^k - 1).at n=42A294046