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Search: id:A015474
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A015474 q-Fibonacci numbers for q=3. +0
1
0, 1, 3, 28, 759, 61507, 14946960, 10896395347, 23830431570849, 156351472432735636, 3077466055723967094237, 181721293280796005380336249, 32191381943890636020834392595840 (list; graph; listen)
OFFSET

0,3

FORMULA

a(n) = 3^(n-1) a(n-1) + a(n-2).

CROSSREFS

Sequence in context: A092985 A084880 A110259 this_sequence A053601 A140990 A122891

Adjacent sequences: A015471 A015472 A015473 this_sequence A015475 A015476 A015477

KEYWORD

nonn,easy

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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