42751

Properties

Appears in sequences

• The Riemann primes of the psi type and index 1.at n=40A197185
• Expansion of f(-x, -x^5) * f(x^3, x^5) / f(-x, -x^2)^2 in powers of x where f(, ) is Ramanujan's general theta function.at n=26A262987
• Centered 15-gonal (or pentadecagonal) primes.at n=15A264822
• Indices where A092243 strictly changes sign.at n=34A269737
• Primes that can be represented as k*R(k) + 1, where R(k) is the reverse of k.at n=45A372197
• Prime numbersat n=4471