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A083149
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a(1) = 3, a(n) = smallest nontrivial palindromic multiple of a(n-1). a(n) is not equal to a(n-1) or a concatenation of a(n-1) with itself.
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1
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3, 6, 222, 444, 888, 21312, 42624, 468864, 40322304, 80644608, 802494494208, 213525880454088525312
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