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A283514
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Concatenation of the numbers from n down to 3.
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0
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3, 43, 543, 6543, 76543, 876543, 9876543, 109876543, 11109876543, 1211109876543, 131211109876543, 14131211109876543, 1514131211109876543, 161514131211109876543, 17161514131211109876543, 1817161514131211109876543, 191817161514131211109876543
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OFFSET
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3,1
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COMMENTS
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The a(3) = 3, a(4) = 43, a(7) = 76543, a(46) = 464544...876543 are primes in this sequence (for n < 2823).
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LINKS
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Table of n, a(n) for n=3..19.
Eric Weisstein's World of Mathematics, Consecutive Number Sequences
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CROSSREFS
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Cf. A000422, A176024, A284891.
Sequence in context: A093163 A199020 A211959 * A299506 A350924 A141060
Adjacent sequences: A283511 A283512 A283513 * A283515 A283516 A283517
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KEYWORD
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base,nonn,easy
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AUTHOR
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XU Pingya, Apr 14 2017
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STATUS
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approved
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