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A094333
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a(1) = 1, a(n) = least proper multiple of a(n-1) which is a concatenation of successive numbers. Terms with more than one digit must be a concatenation of at least two successive numbers.
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3
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OFFSET
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1,2
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LINKS
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EXAMPLE
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a(3) = 4 is the smallest proper multiple of 2 which is a concatenation of a (single) number.
a(5) = 56 and a(6) = 5152 =56*92 is the concatenation of 51 and 52.
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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