207360

Appears in sequences

• Degrees of irreducible representations of O'Nan group ON.at n=25A003919
• Degrees of irreducible representations of O'Nan group ON.at n=27A003919
• Degrees of irreducible representations of O'Nan group ON.at n=26A003919
• Compositorial numbers: product of first n composite numbers.at n=6A036691
• Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*12^j (with i, j >= 0).at n=19A038218
• Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*2^j.at n=16A038328
• n! divided by its squarefree kernel.at n=12A049614
• n! divided by its squarefree kernel.at n=13A049614
• Sum of divisors of those numbers n such that n and n+1 have the same sum of divisors.at n=28A053215
• Products of distinct factorials.at n=28A058295
• LCM of totients of binomial coefficients C(n,j), j = 0..n.at n=18A064451
• 14-almost primes (generalization of semiprimes).at n=27A069275
• Commuting elements: number of ordered pairs g, h in the group GL(2,Z_n) such that gh = hg.at n=9A070943
• a(n) = n-th compositorial number / (product of those primes which divide the n-th compositorial number).at n=8A075070
• Numbers n such that n! is a product of distinct factorials k!*l!*m!*... with k, l, m, etc. < n.at n=29A075082
• Duplicate of A075070.at n=8A085055
• Prime factorials divided by their corresponding primorials.at n=5A092435
• Let M be the 3 X 3 Matrix [ -4 4 8 / 1 0 0 / 0 1 0], a(n) = absolute value of the center term of M^n * [1 1 1].at n=8A094253
• a(n) = determinant of n X n matrix m(i,j) = Product_{k=1..i} k+j.at n=5A096313
• Highly totient numbers: each number k on this list has more solutions to the equation phi(x) = k than any preceding k (where phi is Euler's totient function, A000010).at n=34A097942