OFFSET
1,1
EXAMPLE
1029 is here since the divisors of 1029 are [1, 3, 7, 21, 49, 147, *343*, 1029] and the divisors of 1030 are [1, 2, 5, 10, 103, 206, *515*, 1030].
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Jason Earls, Sep 13 2002
EXTENSIONS
7 missing terms and a(15)-a(36) from Giovanni Resta, Aug 27 2018
STATUS
approved