OFFSET
1,2
COMMENTS
If n+1 has any prime divisors other than 2 or 5, then a(n) is to be chosen so that the concatenation of first n terms is a multiple of those primes (including multiplicity). - David Wasserman, Dec 20 2005
EXAMPLE
a(5) = 15 because if it were 5 or 10, a(6) would not exist.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Dec 06 2003
EXTENSIONS
More terms from David Wasserman, Dec 20 2005
STATUS
approved