A077363 Smallest n-digit square whose external digits as well as internal digits form a square, or 0 if no such number exists.

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

Max Alekseyev, Table of n, a(n) for n = 1..91

Crossrefs

Cf. A077355, A077356, A077357, A077364.

Sequence in context: A153599 A016280 A281946 * A068989 A017318 A173668

Adjacent sequences: A077360 A077361 A077362 * A077364 A077365 A077366

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