42871

Appears in sequences

• Consider all ways of writing a number as p+2m^2 where p is 1 or a prime and m >= 0; sequence gives numbers that are expressible in at least 2 more ways than any smaller number.at n=23A016067
• n^3*a(n) is the number of circles in complex projective plane tangent to three smooth curves of degree n in general position.at n=33A030653
• Absolute discriminants of imaginary quadratic number fields with elementary bicyclic 5-class group (5,5).at n=8A359871