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0, 0, 0, 2, 4, 8, 13, 22, 34, 52, 77, 114, 166, 240, 345, 494, 705, 1004, 1427, 2026, 2873, 4072, 5767, 8166, 11558, 16356, 23141, 32738, 46309, 65504, 92648, 131038, 185328, 262108, 370690, 524250, 741416, 1048536, 1482869, 2097110, 2965777
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,4
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FORMULA
| For n>1, a(n) = floor(sqrt(2^(n+2))) - n - 2
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CROSSREFS
| Cf. A078152, A078153, A078154, A078155, A078156, A078158.
Sequence in context: A046185 A073336 A134035 * A144119 A023600 A074467
Adjacent sequences: A078154 A078155 A078156 * A078158 A078159 A078160
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KEYWORD
| nonn,changed
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu), Nov 27 2002
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EXTENSIONS
| Extended by Robert G. Wilson v (rgwv(AT)rgwv.com), Dec 02 2002
More terms from Max Alekseyev (maxale(AT)gmail.com), Feb 12 2012
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