OFFSET
1,1
LINKS
Pradeep Mutalik, The Prime Rib Problem
FORMULA
Empirical observations, discovered by heuristic methods augmented by computer searches.
EXAMPLE
For n=5, the smallest number generating the maximal interval (13) is 114 using the first n primes. However, if all primes are allowed, the smallest number is 24. Hence a(5) is 24.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Pradeep Mutalik, Sep 07 2017
STATUS
approved