id:A081988 - OEIS Search Results

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A081988

Product of digits + 1 is a prime.

+0
2

1, 2, 4, 6, 11, 12, 14, 16, 21, 22, 23, 25, 26, 28, 29, 32, 34, 36, 41, 43, 44, 47, 49, 52, 56, 58, 61, 62, 63, 65, 66, 67, 74, 76, 82, 85, 89, 92, 94, 98, 111, 112, 114, 116, 121, 122, 123, 125, 126, 128, 129, 132, 134, 136, 141, 143, 144, 147, 149 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Sequence is infinite: every number of the form 111..1 is in the sequence, for example. - Gabriel Cunningham (gcasey(AT)mit.edu), Apr 07 2003`
	EXAMPLE	`126 is a member as 126 + 1 = 13 is a prime.`
	CROSSREFS	`Sequence in context: A063183 A057661 A097954 this_sequence A030783 A136969 A068059` `Adjacent sequences: A081985 A081986 A081987 this_sequence A081989 A081990 A081991`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 04 2003`
	EXTENSIONS	`More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003`

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

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