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A019482
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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(4,28) (agrees with A019481 for n <= 19 only).
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0
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4, 28, 197, 1387, 9766, 68764, 484179, 3409187, 24004668, 169020968, 1190105509, 8379736191, 59003154006, 415451286688, 2925263479867, 20597279875727, 145028966176516, 1021173725712004, 7190258646781909
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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REFERENCES
| 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
| Appears to satisfy a(n) = 7*a(n-1) + a(n-2) - 5*a(n-3).
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CROSSREFS
| Sequence in context: A001396 A155611 A002903 * A198630 A090965 A106258
Adjacent sequences: A019479 A019480 A019481 * A019483 A019484 A019485
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KEYWORD
| nonn
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AUTHOR
| R. K. Guy (rkg(AT)cpsc.ucalgary.ca)
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