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%I #15 Jan 04 2017 15:15:00
%S 1,14,146,1468,14689,1468910,146891012,14689101214,1468910121415,
%T 146891012141516,14689101214151618,1468910121415161820,
%U 146891012141516182021,14689101214151618202122,1468910121415161820212224,146891012141516182021222425
%N Concatenation of first n nonprime numbers.
%C a(360) has 1001 decimal digits. - _Michael De Vlieger_, Jan 03 2017
%H Michael De Vlieger, <a href="/A132934/b132934.txt">Table of n, a(n) for n = 1..359</a>
%t Table[FromDigits@ Flatten@ Map[IntegerDigits, Take[#, n]], {n, Length@ #}] &@ Select[Range@ 30, ! PrimeQ@ # &] (* _Michael De Vlieger_, Jan 03 2017 *)
%Y Cf. A007908, A018252, A019518.
%K easy,nonn,base
%O 1,2
%A _Omar E. Pol_, Sep 12 2007
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