125641

Properties

Appears in sequences

• Integers of the form (x^3)/6 + (x^2)/2 + x + 1.at n=30A127876
• Mountain emirps.at n=30A182721
• Starting from 1, successively take the smallest "Choix de Bruxelles" with factor 13 which is not already in the sequence.at n=7A360190
• a(n) = the smallest positive integer that produces a product that contains the digit 2 when multiplied by 2 at most n times, and where a further multiplication by 2 produces a number that does not contain the digit 2. Set a(n) = -1 if no such number exists.at n=29A381183
• Prime numbersat n=11788