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A064991
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In A064990, drop leading 0's from A_k (for k>0) and convert to decimal.
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1
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OFFSET
| 0,3
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COMMENTS
| Next term is about 4.31*10^218.
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FORMULA
| a(n+1) = a(n)(4^3^n + 2^3^n - 1) + 2^3^n - 1. - David Wasserman (wasserma(AT)spawar.navy.mil), Aug 20 2002
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CROSSREFS
| Sequence in context: A126998 A159402 A093239 * A051326 A033399 A033251
Adjacent sequences: A064988 A064989 A064990 * A064992 A064993 A064994
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KEYWORD
| nonn,easy
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AUTHOR
| Michael Gilleland (megilleland(AT)yahoo.com), Oct 31 2001
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EXTENSIONS
| More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Aug 20 2002
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