id:A084979 - OEIS Search Results

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Palindromes such that the product of the digits + 1 is prime.

+0
2

1, 2, 4, 6, 11, 22, 44, 66, 111, 121, 141, 161, 212, 232, 242, 272, 292, 323, 343, 383, 414, 464, 474, 545, 565, 616, 626, 636, 656, 747, 838, 848, 878, 898, 929, 969, 1111, 1221, 1441, 1661, 2112, 2222, 2332, 2552, 2772, 2882, 3223, 3883, 4114, 4444, 4554 (list; graph; listen)

	OFFSET	`0,2`
	EXAMPLE	`E.g. 383 is 383 = 72, 72+1 = 73 is prime.`
	MATHEMATICA	`Select[ Range[4663], FromDigits[ Reverse[ IntegerDigits[ # ]]] == # && PrimeQ[1 + Times @@ IntegerDigits[ # ]] & ]`
	CROSSREFS	`Cf. A081988.` `Sequence in context: A086379 A096460 A084353 this_sequence A049914 A056763 A129567` `Adjacent sequences: A084976 A084977 A084978 this_sequence A084980 A084981 A084982`
	KEYWORD	`nonn`
	AUTHOR	`Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jun 21 2003`
	EXTENSIONS	`Edited, corrected and extended by Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 21 2003`

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Last modified September 8 08:06 EDT 2008. Contains 143486 sequences.

AT&T Labs Research