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A134793
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Concatenation of next n nonprime numbers.
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0
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1, 46, 8910, 12141516, 1820212224, 252627283032, 33343536383940, 4244454648495051, 525455565758606263, 64656668697072747576, 7778808182848586878890, 9192939495969899100102104105, 106108110111112114115116117118119120121
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OFFSET
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1,2
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LINKS
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Table of n, a(n) for n=1..13.
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MATHEMATICA
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Module[{upto=35, comps, nn}, nn=(upto(upto+1))/2; comps=Select[Range[nn], !PrimeQ[#]&]; Table[FromDigits[Flatten[IntegerDigits/@Take[comps, {((i-1)(i))/2+1, (i(i+1))/2}]]], {i, 25}]] (* Harvey P. Dale, Sep 10 2013 *)
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CROSSREFS
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Cf. A053067, A133013. Nonprime numbers: A018252.
Sequence in context: A243648 A302114 A159380 * A177639 A222097 A152501
Adjacent sequences: A134790 A134791 A134792 * A134794 A134795 A134796
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KEYWORD
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base,easy,nonn
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AUTHOR
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Omar E. Pol, Nov 26 2007
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EXTENSIONS
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More terms from Harvey P. Dale, Sep 10 2013
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STATUS
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approved
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