0,4
a(n) = a(n-1) + 8^(n-2) a(n-2).
Sequence in context: A015454 A121246 A086226 this_sequence A075232 A037533 A001716
Adjacent sequences: A015462 A015463 A015464 this_sequence A015466 A015467 A015468
nonn,easy
Olivier Gerard (ogerard(AT)ext.jussieu.fr)
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