A115552 - OEIS

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A115552

Numbers k such that k^2 is the concatenation of two numbers 8*m and m.

1

9, 18, 27, 267, 2667, 26667, 266667, 2666667, 26666667, 266666667, 2666666667, 9063180828, 9237472767, 9411764706, 9586056645, 9760348584, 9934640523, 10108932462, 10283224401, 10457516340, 10631808279, 10806100218

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..22.

EXAMPLE

9^2 = 8_1.

CROSSREFS

Cf. A102567, A106497, A115527 - A115556.

Sequence in context: A329640 A052489 A034033 * A043322 A071121 A157644

Adjacent sequences: A115549 A115550 A115551 * A115553 A115554 A115555

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Jan 25 2006

EXTENSIONS

Definition modified by Georg Fischer, Jul 26 2019

STATUS

approved