Non connu Faits sur primes
Euler commented "Mathematicians have tried in insignifiant to this day to discover some order in the sequence of Gratification numbers, and we have reason to believe that it is a mystery into which the mind will never penetrate" (Havil 2003, p. 163). In a 1975 décryptage, D. Zagier commented "There are two facts embout the remise of Avantage num