0,3
a(n) = 3^(n-1) a(n-1) + a(n-2).
Sequence in context: A092985 A084880 A110259 this_sequence A053601 A140990 A122891
Adjacent sequences: A015471 A015472 A015473 this_sequence A015475 A015476 A015477
nonn,easy
Olivier Gerard (olivier.gerard(AT)gmail.com)
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