34762

Appears in sequences

• Let r, s, t be three permutations of the set {1,2,3,..,n}; a(n) = value of Sum_{i=1..n} r(i)*s(i)*t(i), with r={1,2,3,..,n}; s={n,n-1,..,1} and t={n,n-2,n-4,...,1,...,n-3,n-1}.at n=25A070893
• Cardinality of Image^inf({ 2 }) under repeated base-n zero-split squaring.at n=4A113918
• Composite squarefree numbers n such that p(i)-8 divides n+8, where p(i) are the prime factors of n.at n=22A225708
• Number of double palindrome structures of length n using a maximum of three different symbols.at n=16A328692
• a(n) = (prime(n)+1) * prime(n+1).at n=41A345727