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A018904
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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(1,6).
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0
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1, 6, 37, 229, 1418, 8781, 54377, 336734, 2085253, 12913101, 79965442, 495192589, 3066520913, 18989683446, 117595179557, 728217839669, 4509548979898, 27925753660941, 172932530727097, 1070898946784974
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| a(n) is the number of compositions of n when there are 6 types of ones. [From Milan R. Janjic (agnus(AT)blic.net), Aug 13 2010]
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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
| a(n) = (a_1+1)a(n-1) - (a_1-1)a(n-2).
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CROSSREFS
| Sequence in context: A180032 A022035 A005668 * A192807 A076026 A161734
Adjacent sequences: A018901 A018902 A018903 * A018905 A018906 A018907
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KEYWORD
| nonn
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AUTHOR
| R. K. Guy (rkg(AT)cpsc.ucalgary.ca)
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