OFFSET
1,1
COMMENTS
Among the first 51 terms only three terms are prime: SmBackConSq(2), SmBackConSq(3), SmBackConSq(14), found by Micha Fleuren.
The next term a(4) is formed from concatenation of square of numbers from 700 to 1 and consist of 3742 digits.- Shyam Sunder Gupta
Analogously, a(5) is the concatenation of squares up to 2818^2 and has 18269 digits, while a(6) > 10^40000. - Giovanni Resta, Jul 22 2013
LINKS
CROSSREFS
KEYWORD
nonn,bref,base,less
AUTHOR
M. Grete (martha.grete(AT)web.de), Feb 21 2004
EXTENSIONS
a(4) term from Shyam Sunder Gupta
STATUS
editing