48069

Appears in sequences

• Numbers k such that binomial(6k, k) + 1 is prime.at n=23A125245
• Last term where no prime sums occur in A161190 in a 4-diagonal set of 24 terms.at n=28A161193
• a(n) = 109*n^2.at n=21A174339
• Numbers n such that (n^6 + 1091)/4 is prime.at n=22A181112
• Indices of centered triangular numbers (A005448) which are also heptagonal numbers (A000566).at n=5A254675
• G.f.: 1/(1 - 1!*x/(1 - 2!*x/(1 - 3!*x/(1 - 4!*x/(1 - 5!*x/(1 - 6!*x/(1 - ...))))))), a continued fraction.at n=5A285380
• Harary index of the n X n black bishop graph.at n=28A296198