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Search: id:A116454
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| 0, 2, 9, 25, 59, 129, 271, 557, 1131, 2281, 4583, 9189, 18403, 36833, 73695, 147421, 294875, 589785, 1179607, 2359253, 4718547, 9437137, 18874319, 37748685, 75497419, 150994889, 301989831, 603979717, 1207959491, 2415919041
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OFFSET
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1,2
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COMMENT
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A116451(a(n)) = A116453(n);
Primes include a(2) = 2, a(5) = 59, a(7) = 271, a(8) = 557, a(10) = 2281, a(11) = 4583, a(14) = 36833. - Jonathan Vos Post (jvospost2(AT)yahoo.com), Feb 20 2006
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FORMULA
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a(n+1) = (a(n) + n) * 2 + 1 for n>1.
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CROSSREFS
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Adjacent sequences: A116451 A116452 A116453 this_sequence A116455 A116456 A116457
Sequence in context: A097346 A053194 A005582 this_sequence A124633 A093122 A101051
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KEYWORD
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nonn
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AUTHOR
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Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 16 2006
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