id:A066725 - OEIS Search Results

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Primes p the product of whose digits increased by one is prime.

+0
3

2, 11, 23, 29, 41, 43, 47, 61, 67, 89, 149, 163, 167, 211, 223, 227, 229, 233, 251, 257, 263, 269, 281, 349, 367, 383, 419, 431, 433, 439, 463, 491, 521, 523 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`A084354 MINUS A011540. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 26 2007`
	EXAMPLE	`2 * 2 * 3 + 1 = 13, a prime; since 223 is also prime, it is a term of the sequence.`
	CROSSREFS	`Sequence in context: A066079 A045386 A084354 this_sequence A087340 A106927 A158189` `Adjacent sequences: A066722 A066723 A066724 this_sequence A066726 A066727 A066728`
	KEYWORD	`easy,nonn,base`
	AUTHOR	`Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Jan 15 2002`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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