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A115550 Numbers n such that the square of n is the concatenation of two numbers m and 8*m. 0
18, 36, 168, 252, 336, 1668, 3336, 16668, 33336, 166668, 333336, 1666668, 3333336, 16666668, 22222224, 27777780, 33333336, 113149848, 114678900, 116207952, 117737004, 119266056, 120795108, 122324160, 123853212 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..25.

EXAMPLE

18^2 = 3_24.

CROSSREFS

Cf. A102567, A106497, A115527 - A115556.

Sequence in context: A252424 A327774 A335784 * A061713 A198802 A041638

Adjacent sequences:  A115547 A115548 A115549 * A115551 A115552 A115553

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Jan 25 2006

STATUS

approved

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Last modified July 8 19:01 EDT 2020. Contains 335524 sequences. (Running on oeis4.)