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A077363
Smallest n-digit square whose external digits as well as internal digits form a square, or 0 if no such number exists.
2
1, 16, 196, 0, 10816, 132496, 3013696, 10010896, 0, 1021697296, 32747969296, 119013960256, 3495164855296, 60207636572164, 401377463841649, 0, 80921770503885441, 0, 0, 0, 174389521641325050256, 1436097534223509431296
OFFSET
1,2
LINKS
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Nov 05 2002
EXTENSIONS
More terms from Erich Friedman, Aug 08 2005
More terms from Sean A. Irvine, Mar 28 2010
STATUS
approved