333795

Appears in sequences

• a(n) = n^2*(n^2 - 1)/4.at n=34A006011
• a(n) is the least k > 0 such that k and 3k are anagrams in base n (written in base 10).at n=30A023095
• Odd unitary abundant numbers that are not odd, squarefree, ordinary abundant numbers.at n=1A129486
• Denominator of 1/u_n(1/2), where polynomial u_n(x) is used to approximate x->sin(Pi*x)/Pi.at n=3A230143
• Denominator of 1/v_n(1/2), where polynomial v_n(x) is used to approximate x->sin(Pi*x)/Pi.at n=3A230145