cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A283514 Concatenation of the numbers from n down to 3.

Original entry on oeis.org

3, 43, 543, 6543, 76543, 876543, 9876543, 109876543, 11109876543, 1211109876543, 131211109876543, 14131211109876543, 1514131211109876543, 161514131211109876543, 17161514131211109876543, 1817161514131211109876543, 191817161514131211109876543
Offset: 3

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Author

XU Pingya, Apr 14 2017

Keywords

Comments

The a(3) = 3, a(4) = 43, a(7) = 76543, a(46) = 464544...876543 are primes in this sequence (for n < 2823).

Links

Crossrefs

Cf. A000422, A176024, A284891.
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