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Search: id:A090921
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| A090921 |
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Smallest prime of the form concatenation n, 2n, 3n,...kn, and 1. |
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+0
1
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| 11, 241, 31, 41, 5101, 61, 71, 8161, 9181, 101, 1122334455661, 12241, 131, 14281, 151, 1632481, 17341, 181, 191, 2040601, 211, 22441, 234669921151, 241, 251
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Next term a(26) has 116 digits; k = 39, and is too large to include - David Wasserman (wasserma(AT)spawar.navy.mil), Feb 15 2006
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CROSSREFS
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Sequence in context: A091805 A139229 A142672 this_sequence A089328 A077422 A121826
Adjacent sequences: A090918 A090919 A090920 this_sequence A090922 A090923 A090924
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KEYWORD
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base,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Dec 16 2003
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EXTENSIONS
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More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Feb 15 2006
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