1238188770

Appears in sequences

• a(n) = ((2^prime(n+2)-2)/prime(n+2))/3, where n >= 1.at n=9A145756
• Number of 2-elements orbits of S3 action on irreducible polynomials of degree 3n, n > 0, over GF(2).at n=36A165920
• Sets with a congruence property.at n=17A262590