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A159903 Concatenation of the first n nonsquarefree numbers A013929. 0
4, 48, 489, 48912, 4891216, 489121618, 48912161820, 4891216182024, 489121618202425, 48912161820242527, 4891216182024252728, 489121618202425272832, 48912161820242527283236 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

a(4) = 48912 is the concatenation 4//8//9//12 of A013929(1) to A013929(4).

CROSSREFS

Cf. A013929.

Sequence in context: A026942 A264727 A283049 * A099671 A196963 A220325

Adjacent sequences:  A159900 A159901 A159902 * A159904 A159905 A159906

KEYWORD

nonn,base,less

AUTHOR

Jaroslav Krizek, Apr 25 2009

EXTENSIONS

Slightly edited by R. J. Mathar, Apr 28 2009

STATUS

approved

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Last modified February 27 18:19 EST 2020. Contains 332307 sequences. (Running on oeis4.)