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Search: id:A085260
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| A085260 |
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Ratio-determined insertion sequence I(0.0833344) (see the link below). |
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+0
4
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| 1, 12, 155, 2003, 25884, 334489, 4322473, 55857660, 721827107, 9327894731, 120540804396, 1557702562417, 20129592507025, 260127000028908, 3361521407868779, 43439651302265219, 561353945521579068
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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This sequence is the ratio-determined insertion sequence (RDIS) "twin" to A078362 (see the link for an explanation of "twin"). See A082630 or A082981 for recent examples of RDIS sequences.
a(n) = L(n,13), where L is defined as in A108299. - Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Jun 01 2005
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LINKS
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Tanya Khovanova, Recursive Sequences
John W. Layman, Ratio-Determined Insertion Sequences and the Tree of their Recurrence Types
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FORMULA
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It appears that the sequence satisfies a(n)=13a(n)-a(n-1).
If the recurrence a(n+2)=13a(n+1)-a(n) holds then for n>0, a(n)a(n+3) = 143 + a(n+1)a(n+2). - R. Stephan, May 29 2004
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CROSSREFS
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Cf. A078362, A082630, A082981.
Row 13 of array A094954.
Adjacent sequences: A085257 A085258 A085259 this_sequence A085261 A085262 A085263
Sequence in context: A036360 A120657 A015612 this_sequence A082173 A005723 A097259
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KEYWORD
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nonn
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AUTHOR
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John W. Layman (layman(AT)math.vt.edu), Jun 23 2003
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