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A176636
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Periodic sequence: Repeat 57, 71.
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2
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57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57
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OFFSET
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0,1
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COMMENTS
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Continued fraction expansion of (4047+sqrt(16394397))/142.
Inverse binomial transform of 57 followed by 128*A000079.
Third inverse binomial transform of A176635.
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LINKS
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Table of n, a(n) for n=0..68.
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FORMULA
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a(n) = 64-7*(-1)^n.
a(n) = -a(n-1)+128 for n > 0; a(0) = 57.
a(n) = a(n-2) for n > 1; a(0) = 57, a(1) = 71.
G.f.: (57+71*x)/((1-x)*(1+x)).
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MATHEMATICA
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PadRight[{}, 100, {57, 71}] (* Harvey P. Dale, Jun 18 2014 *)
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PROG
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(MAGMA) &cat[ [57, 71]: k in [1..35] ];
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CROSSREFS
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Cf. A000079 (powers of 2), A176635, A176713 (decimal expansion of (4047+sqrt(16394397))/142).
Sequence in context: A056082 A218562 A067809 * A072054 A336330 A230956
Adjacent sequences: A176633 A176634 A176635 * A176637 A176638 A176639
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KEYWORD
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easy,cofr,nonn
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AUTHOR
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Klaus Brockhaus, Apr 22 2010
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EXTENSIONS
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Comment, crossref and keyword cofr added by Klaus Brockhaus, Apr 24 2010
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STATUS
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approved
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