61500

Appears in sequences

• Numbers whose base-4 representation contains exactly four 0's and four 3's.at n=22A045085
• a(n) is the number of terms in the expansion of (x+y-z)*(x^2+y^2-z^2)*(x^3+y^3-z^3)*...*(x^n+y^n-z^n).at n=25A086817
• Number of zig-zag paths from top to bottom of a rectangle of width 9 with n rows whose color is that of the top right corner.at n=15A153363
• Number of zig-zag paths from top to bottom of a rectangle of width 9 with n rows whose color is not that of the top right corner.at n=15A153364
• Number of zig-zag paths from top to bottom of a rectangle of width 9 with 2*n rows whose color is that of the top right corner.at n=7A153365
• Numbers which are the sums of consecutive fifth powers.at n=34A217845
• Number of triple-crossings of diagonals in the regular 2n-gon.at n=39A260417
• a(n) = n*(2*n - 3 - (-1)^n)*(11*n + (-1)^n)/24.at n=40A308026
• Number of n-step mirror-symmetrical self-avoiding walks on the square lattice.at n=19A323188
• Consider primitive pairs of integers (b, c) with b > 0 such that x^5 + b*x + c = 0 is irreducible and solvable by radicals: sequence gives values of c.at n=24A371554
• Consider primitive pairs of integers (b, c) with b < 0 such that x^5 + b*x + c = 0 is irreducible and solvable by radicals: sequence gives values of c.at n=9A371558
• Array read by ascending antidiagonals: A(n, k) = HurwitzZeta(-n, k) - HurwitzZeta(-n, k+n) with k >= 0.at n=49A391310