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A073414
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Numerator of the n-th convergent to sum(k>=0,1/2^(2^k)).
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1
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0, 1, 4, 9, 40, 169, 1054, 4385, 9824, 43681, 271910, 587501, 2621914, 16318985, 67897854, 287910401, 643718656, 2862785025, 17820428806, 38503642637, 171834999354, 725843640053, 4526896839672, 18833430998741, 42193758837154
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OFFSET
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1,3
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LINKS
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Table of n, a(n) for n=1..25.
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PROG
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(PARI) a(n)=component(component(contfracpnqn(contfrac(sum(k=0, 20, 1/2^(2^k)), n)), 1), 1)
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CROSSREFS
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Cf. A007404, A073415.
Sequence in context: A149162 A149163 A149164 * A085110 A013459 A041229
Adjacent sequences: A073411 A073412 A073413 * A073415 A073416 A073417
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KEYWORD
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base,easy,frac,nonn
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AUTHOR
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Benoit Cloitre, Aug 23 2002
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STATUS
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approved
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