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A132934 Concatenation of first n nonprime numbers. 2
1, 14, 146, 1468, 14689, 1468910, 146891012, 14689101214, 1468910121415, 146891012141516, 14689101214151618, 1468910121415161820, 146891012141516182021, 14689101214151618202122, 1468910121415161820212224, 146891012141516182021222425 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(360) has 1001 decimal digits. - Michael De Vlieger, Jan 03 2017

LINKS

Michael De Vlieger, Table of n, a(n) for n = 1..359

MATHEMATICA

Table[FromDigits@ Flatten@ Map[IntegerDigits, Take[#, n]], {n, Length@ #}] &@ Select[Range@ 30, ! PrimeQ@ # &] (* Michael De Vlieger, Jan 03 2017 *)

CROSSREFS

Cf. A007908, A018252, A019518.

Sequence in context: A016278 A241169 A209347 * A027473 A002451 A302994

Adjacent sequences:  A132931 A132932 A132933 * A132935 A132936 A132937

KEYWORD

easy,nonn,base

AUTHOR

Omar E. Pol, Sep 12 2007

STATUS

approved

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Last modified June 5 15:37 EDT 2020. Contains 334852 sequences. (Running on oeis4.)