OFFSET
1,1
COMMENTS
Among the first 145 terms the largest is a(140)=9 because inserting 1 in 12 places into A069246(140)=18064911343, we get only 9 distinct primes (in the order of their appearances): 118064911343, 181064911343, 180164911343, 180614911343, 180641911343, 180649111343, 180649113143, 180649113413, 180649113431.
LINKS
Zak Seidov, Table of n, a(n) for n = 1..145
EXAMPLE
a(7)=2 because inserting 1 in 4 possible places into A069246(7)=151 we get only 2 distinct primes, 1151 and 1511.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Zak Seidov, Nov 17 2014
STATUS
approved