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A069701 Squares with internal digits also forming a square > 0. 0
144, 196, 441, 841, 1369, 3364, 4096, 5041, 8649, 10816, 11449, 20164, 38416, 61009, 64009, 77841, 117649, 132496, 170569, 231361, 249001, 288369, 310249, 405769, 564001, 619369, 1004004, 1077444, 1129969, 2163841, 2256004, 3013696 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..31.

EXAMPLE

3364 is a member as 3364 and 36 both are squares.

MATHEMATICA

nzsqr[n_] := n>0&&IntegerQ[Sqrt[n]]; Select[Range[10, 2000], nzsqr[FromDigits[Drop[Drop[IntegerDigits[ #^2], 1], -1]]]&]^2

CROSSREFS

Sequence in context: A165076 A165078 A135780 * A124144 A276564 A061040

Adjacent sequences:  A069698 A069699 A069700 * A069702 A069703 A069704

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Apr 06 2002

EXTENSIONS

Edited by Dean Hickerson, Apr 09 2002

STATUS

approved

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Last modified February 24 01:16 EST 2020. Contains 332195 sequences. (Running on oeis4.)