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A003590
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Rows of Pascal's triangle written as a single number.
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5
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1, 11, 121, 1331, 14641, 15101051, 1615201561, 172135352171, 18285670562881, 193684126126843691, 1104512021025221012045101, 1115516533046246233016555111, 1126622049579292479249522066121, 11378286715128717161716128771528678131
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OFFSET
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0,2
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COMMENTS
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If n<=500, a(n) is prime only for a(1)=11, a(8)=18285670562881, and a(29). - Enrique Pérez Herrero, Jun 05 2010
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LINKS
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FORMULA
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MAPLE
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a:= n-> parse(cat(seq(binomial(n, k), k=0..n))):
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MATHEMATICA
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FromDigits[Flatten[IntegerDigits/@#]]&/@Table[Binomial[i, j], {i, 0, 15}, {j, 0, i}] (* Harvey P. Dale, Aug 11 2024 *)
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy,base
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AUTHOR
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Matthew Wells (mwells(AT)nmt.edu)
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EXTENSIONS
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STATUS
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approved
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