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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A212951 Amounts (in hundredths of a Euro) of coins in denominations suggested by Shallit.

Original entry on oeis.org

1, 2, 5, 10, 20, 50, 100, 133, 200
Offset: 1

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Author

Jonathan Vos Post, May 31 2012

Keywords

Comments

The European Union uses eight coins - worth 1, 2, 5, 10, 20, and 50 cents, plus 1- and 2-Euro coins - with a range of values from 0 to 499. The average cost of making change in Europe, Jeffrey Shallit calculates, is 4.6 coins. The best way to lower the cost, to 3.92, would be for Europeans to add yet another coin, worth either 1.33 or 1.37 Euros (the sequence as shown uses 133, though 137 is an equally valid solution).

Examples

			1, 2, 5, 10, 20, and 50 cents, plus 1- and 2-Euro coins (100 and 200 cents), and the proposed 1.33-Euro coin (133 cents).
		

Crossrefs

Cf. A208953 (analog for American coins).
Cf. A212950 (analog for Canadian coins).
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