OFFSET
1,1
COMMENTS
Or, numbers n such that both n and n+1 are terms in A107425.
LINKS
Zak Seidov, Table of n, a(n) for n = 1..2691 (all terms up to 500000)
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Mar 19 2014
STATUS
approved