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A132934
Concatenation of first n nonprime numbers.
3
1, 14, 146, 1468, 14689, 1468910, 146891012, 14689101214, 1468910121415, 146891012141516, 14689101214151618, 1468910121415161820, 146891012141516182021, 14689101214151618202122, 1468910121415161820212224, 146891012141516182021222425
OFFSET
1,2
COMMENTS
a(360) has 1001 decimal digits. - Michael De Vlieger, Jan 03 2017
LINKS
MATHEMATICA
Table[FromDigits@ Flatten@ Map[IntegerDigits, Take[#, n]], {n, Length@ #}] &@ Select[Range@ 30, ! PrimeQ@ # &] (* Michael De Vlieger, Jan 03 2017 *)
CROSSREFS
KEYWORD
easy,nonn,base
AUTHOR
Omar E. Pol, Sep 12 2007
STATUS
approved