3423420

Appears in sequences

• Increasing values of A000793 (largest order of permutation of n elements).at n=39A002809
• Areas of more than one primitive Pythagorean triangle.at n=15A024407
• Maximal order of element of alternating group A_{2n}.at n=35A057742
• Maximal order of element of alternating group A_{2n+1}.at n=35A057743
• Let S(n)=sigma(|n|)/2-n; sequence gives numbers n such that S(S(S(S(n))))=n. May be called {1,2}-sociable number of orders 1 or 2 or 4.at n=11A114529
• Numbers with prime factorization pqrstu^2v^2.at n=1A190462
• Numbers n such that there exists an x!=n that makes {n,n,x,x} an amicable multiset.at n=4A259306
• a(n) = denominator of Sum_{k=2..A335138(n)} abs(A309229(n, k))/k.at n=33A335417
• Largest order of element in direct product S_n * S_n where S_n is the symmetric group.at n=34A358070
• a(n) is the smallest number with exactly n divisors that are square pyramidal numbers.at n=13A358543