OFFSET
1,1
COMMENTS
Subsquares with leading and/or trailing zeros not included.
Subsquares at least 3 digits long.
See A048428 for solutions.
EXAMPLE
6724743290521 = 2593211^2 = 67{24}743{29}0521 = 6724 and 2474329 and 290521 = 82^2 and 1573^2 and 539^2.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Apr 15 1999
EXTENSIONS
a(7)-a(16) from Lars Blomberg, May 17 2015
STATUS
approved