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A116230 n times n+7 gives the concatenation of two numbers m and m-9. 4
80, 77394226, 89158932, 36623663376237623663376334, 37633762366336633762366234, 62366237633663366237633760, 63376336623762376336623660, 86194223018927804587702127 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

89158932 * 89158939 = 79493157//79493148, where // denotes

concatenation.

CROSSREFS

Cf. A116099, A116229, A116231, A116238.

Sequence in context: A159391 A051184 A159444 * A056669 A005085 A050455

Adjacent sequences:  A116227 A116228 A116229 * A116231 A116232 A116233

KEYWORD

nonn,base

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006

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Last modified February 15 13:16 EST 2012. Contains 205794 sequences.