id:A053653 - OEIS Search Results

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Number of ways to rearrange digits of prime(n)*prime(n+1) to form a prime.

+0
2

0, 0, 1, 0, 1, 0, 1, 2, 0, 0, 3, 4, 8, 0, 6, 11, 3, 0, 3, 6, 1, 1, 4, 3, 0, 2, 5, 6, 15, 15, 17, 16, 12, 12, 4, 10, 8, 5, 8, 18, 11, 23, 5, 13, 9, 10, 8, 6, 27, 9, 4, 6, 14, 4, 24, 3, 14, 6, 4, 33, 7, 14, 11, 12, 6, 86, 26, 53, 13, 79, 27 (list; graph; listen)

	OFFSET	`1,8`
	EXAMPLE	`a(8)=2 because 19*23=437 and 2 primes, 347 and 743, can be formed from the digits of 437.`
	MAPLE	`Leading zeros are not allowed in the rearranged number.`
	CROSSREFS	`Cf. A053652, A053736.` `Sequence in context: A074734 A124182 A013585 this_sequence A064146 A028590 A074644` `Adjacent sequences: A053650 A053651 A053652 this_sequence A053654 A053655 A053656`
	KEYWORD	`easy,nonn,base`
	AUTHOR	`Enoch Haga (Enokh(AT)comcast.net), Feb 18 2000`
	EXTENSIONS	`Edited by Jens Kruse Andersen (jens.k.a(AT)get2net.dk), Dec 01 2006`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

AT&T Labs Research