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Search: id:A015460
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| A015460 |
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q-Fibonacci numbers for q=3. |
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+0
6
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| 0, 1, 1, 4, 13, 121, 1174, 30577, 886423, 67758322, 5883579625, 1339570631551, 348759063908176, 237649677731273173, 185582515360156234789, 379075929664916795231668, 888014493839316022947740209
(list; graph; listen)
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OFFSET
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0,4
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FORMULA
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a(n) = a(n-1) + 3^(n-2) a(n-2).
Associated constant: C_3=lim n-->infty a(n)*a(n-2)/a(n-1)^2 =1.147262608254535257774121586.... - Benoit Cloitre (benoit7848c(AT)orange.fr), Aug 30 2003
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CROSSREFS
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Cf. A015459.
Sequence in context: A041433 A058014 A045886 this_sequence A121813 A006104 A067634
Adjacent sequences: A015457 A015458 A015459 this_sequence A015461 A015462 A015463
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KEYWORD
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nonn,easy
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AUTHOR
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Olivier Gerard (olivier.gerard(AT)gmail.com)
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