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A029784 Squares such that digits of sqrt(n) are not present in n. 6
4, 9, 16, 49, 64, 81, 289, 324, 484, 576, 841, 1089, 1156, 1444, 1521, 1936, 2209, 2809, 2916, 3249, 3364, 3481, 3844, 4489, 5184, 5929, 6241, 7056, 7744, 8464, 8836, 20736, 24649, 24964, 29929, 34969, 35344, 36864, 37636, 43681, 44944, 50176, 56169, 56644 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Giovanni Resta, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A029783(n)^2. - Michel Marcus, Aug 08 2018

MATHEMATICA

Select[Range[500], {} == Intersection @@ IntegerDigits[{#, #^2}] &]^2 (* Giovanni Resta, Aug 08 2018 *)

CROSSREFS

Cf. A029783, A029785, A029786, A111116, A113316.

Sequence in context: A034377 A034378 A062387 * A112735 A059931 A027382

Adjacent sequences:  A029781 A029782 A029783 * A029785 A029786 A029787

KEYWORD

nonn,base

AUTHOR

Patrick De Geest

EXTENSIONS

More terms from Giovanni Resta, Aug 08 2018

STATUS

approved

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Last modified December 18 20:06 EST 2018. Contains 318245 sequences. (Running on oeis4.)