103416

Appears in sequences

• Expansion of tan(log(1+x)^2).at n=8A009655
• Duplicate of A009655.at n=8A012268
• Decimal part of a(n)^(1/4) starts with a 'nine digits' anagram.at n=31A034279
• Number of n-node unlabeled rooted trees with thickening limbs and root outdegree (branching factor) 4.at n=38A245144
• Composite numbers n such that n+2 is also composite and such that (sopfr(n), sopfr(n+2)) is a twin prime pair. A001414 explains notation 'sopfr(n)'.at n=7A247048
• Octagonal numbers (A000567) in which parity of digits alternates.at n=22A297647