A115552 Numbers k such that k^2 is the concatenation of two numbers 8*m and m.

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

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