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Search: id:A116137
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| A116137 |
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a(0)=1. a(n) = a(n-1) + (nth divisor from the concatenated sequence of divisors of the terms of {a(k)}). |
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+0
2
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| 1, 2, 3, 5, 6, 9, 10, 15, 16, 18, 21, 27, 28, 31, 40, 41, 43, 48, 58, 59, 62, 67, 82, 83, 85, 89, 97, 113, 114, 116, 119, 125, 134, 152, 153, 156, 163, 184, 185, 188, 197, 224, 225, 227, 231, 238, 252, 280, 281, 312, 313, 315, 319, 324, 332, 342, 362, 402, 403, 444
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OFFSET
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0,2
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EXAMPLE
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The concatenated sequence of divisors of {a(k)} is 1;1,2;1,3;1,5;1,2,3,6;1,3,9;... The 11th term of this divisor sequence is 6. So a(11) = a(10) + 6 = 27.
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CROSSREFS
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Sequence in context: A076061 A025523 A128689 this_sequence A133030 A014822 A018462
Adjacent sequences: A116134 A116135 A116136 this_sequence A116138 A116139 A116140
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KEYWORD
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nonn
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AUTHOR
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Leroy Quet (qq-quet(AT)mindspring.com), Apr 08 2007
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EXTENSIONS
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More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 31 2007
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