48693

Appears in sequences

• a(n) = Sum_{d|n} binomial(2*d-2,d-1).at n=9A066768
• The sequence a[n]+b[n]+c[n]+d[n] defined in A126940.at n=9A126945
• Numbers k such that k^2+4, k^2+8, and k^2+10 are prime.at n=21A157929