44100

Appears in sequences

• a(n) = (2n)!(2n+1)!/n!^4, or equally (2n+1)*binomial(2n,n)^2.at n=4A000515
• Sum of first n cubes; or n-th triangular number squared.at n=20A000537
• Second-order reciprocal Stirling number (Fekete) a(n) = [[2n+2, n]]. The number of n-orbit permutations of a (2n+2)-set with at least 2 elements in each orbit. Also known as associated Stirling numbers of the first kind (e.g., Comtet).at n=3A000907
• Number of n-step self-avoiding walks on square lattice.at n=10A001411
• The minimal numbers: sequence A005179 arranged in increasing order.at n=49A007416
• Triangle T(n,k) read by rows: associated Stirling numbers of first kind (n >= 2, 1 <= k <= floor(n/2)).at n=23A008306
• Theta series of A_6 lattice.at n=28A008446
• Square the entries of Pascal's triangle.at n=59A008459
• Square the entries of Pascal's triangle.at n=61A008459
• Specific heat coefficients for square lattice spin 2 Ising model.at n=27A010112
• a(n) = n^2*(n+1).at n=35A011379
• Squares of elements in Pascal triangle (by row) that are not 1.at n=39A014719
• Squares of elements in Pascal triangle (by row) that are not 1.at n=41A014719
• Squares of elements to right of central element in Pascal triangle (by row) that are not 1.at n=16A014720
• Squares of elements to left of the central element in Pascal triangle (by row).at n=25A014721
• Squares of even elements in Pascal's triangle A007318.at n=26A014727
• Squares of even elements in Pascal's triangle A007318.at n=24A014727
• Squares of even triangular numbers.at n=9A014738
• Squares of numbers in array formed from even elements to the right of middle of rows of Pascal triangle.at n=9A014762
• Squares of distinct elements in Pascal triangle.at n=22A014764