OFFSET
1,1
COMMENTS
For n > 24, a(n) = a(n-24) + 4488211, the first 24 values are in the data.
When the number a(n) has 4 or 9 as the last digit, the number a(n)*6^k-1 is always divisible by 5 and always has a divisor in the set { 7, 13, 31, 37, 97 } for every k.
FORMULA
For n > 24 a(n) = a(n-24) + 4488211.
CROSSREFS
KEYWORD
nonn
AUTHOR
Pierre CAMI, Jun 29 2014
STATUS
approved