A110791 Number of digits in A110790(n).
1, 1, 1, 15, 5, 87, 4, 27, 5, 168, 27, 478, 70
Offset: 1
Examples
3, 31, 313, 313111111111111111, ... are all prime.
Crossrefs
Extensions
More terms from David Wasserman, Jan 06 2009
Two more terms from Sean A. Irvine, Mar 22 2010
Comments