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Search: id:A019479
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| A019479 |
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Define the sequence S(a_0,a_1) by a_{n+2} is the least integer such that a_{n+2}/a_{n+1}>a_{n+1}/a_n for n >= 0. This is S(4,8). |
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1
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| 4, 8, 17, 37, 81, 178, 392, 864, 1905, 4201, 9265, 20434, 45068, 99400, 219233, 483533, 1066465, 2352162, 5187856, 11442176, 25236513, 55660881, 122763937, 270764386, 597189652, 1317143240, 2905050865, 6407291381
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OFFSET
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0,1
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REFERENCES
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D. W. Boyd, Linear recurrence relations for some generalized Pisot sequences, Advances in Number Theory ( Kingston ON, 1991) 333-340, Oxford Sci. Publ., Oxford Univ. Press, New York, 1993;.
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FORMULA
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Apparently satisfies a(n) = 3*a(n-1) - 2*a(n-2) + a(n-3) - a(n-4).
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CROSSREFS
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Sequence in context: A008372 A005697 A115618 this_sequence A084814 A098125 A119471
Adjacent sequences: A019476 A019477 A019478 this_sequence A019480 A019481 A019482
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KEYWORD
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nonn
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AUTHOR
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R. K. Guy (rkg(AT)cpsc.ucalgary.ca)
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