34748

Appears in sequences

• a(n) = f(n,n+5) where f is given in A034261.at n=6A034272
• Expansion of (1-x)/(1 - 10*x + 18*x^2 - 8*x^3).at n=5A045993
• Numbers m such that phi(m) = tau(m)^3.at n=20A068559
• Sum of the first n twin prime pairs.at n=39A086169
• Number of n-node labeled oriented graphs whose underlying graphs are mating graphs, cf. A006024.at n=5A102596
• Number of monic irreducible polynomials of degree 2 in GF(2^n)[x,y].at n=2A115492
• Triangle read by rows: T(n,g) = number of general immersions of a circle with n crossings in a surface of arbitrary genus g (the circle is oriented, the surface is unoriented).at n=25A260885
• Numbers k such that (16*10^k - 31)/3 is prime.at n=31A270929
• Numbers n such that n and n+1 both have 24 divisors.at n=12A274362