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A274831
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Strobogrammatic (A000787) composite numbers whose prime factors are strobogrammatic as well.
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1
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1111, 11088011, 16169191, 101808101, 616101919, 668808899, 686808989, 1016969101, 1106699011, 1199006611, 6068888909, 6699116699, 6699886699, 11990006611, 16168089191, 19190006161, 19198086161, 66110001199, 66880008899, 110668899011, 161600009191
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OFFSET
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1,1
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COMMENTS
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The smallest term which is the product of 3 primes is 1111008888001111 = 11 * 101 * 1000008000001. The smallest term which is not a multiple of 11 or 101 is a(790) = 100111801888108111001 = 100111001 * 1000008000001.
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LINKS
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EXAMPLE
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16169191 is a term because it is equal to 101 * 160091.
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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