239611

Properties

Appears in sequences

• Primes of the form (2k)^2 + 3(2k + 1)^2.at n=27A147297
• Primes of the form n^2 + n + 1, where n is semiprime.at n=32A193144
• Coefficients in the expansion of 1/([r]-[2*r]*x+[3*r]*x^2-...); [ ]=floor, r=sqrt(11/4).at n=21A288237
• Prime numbersat n=21191