id:A032350 - OEIS Search Results

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Palindromic nonprime numbers.

+0
6

1, 4, 6, 8, 9, 22, 33, 44, 55, 66, 77, 88, 99, 111, 121, 141, 161, 171, 202, 212, 222, 232, 242, 252, 262, 272, 282, 292, 303, 323, 333, 343, 363, 393, 404, 414, 424, 434, 444, 454, 464, 474, 484, 494, 505, 515, 525, 535, 545, 555, 565, 575, 585, 595, 606, 616 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`A complement to the palindromic primes.`
	LINKS	`P. De Geest, World!Of Numbers` `P. De Geest, World!Of Palindromic Primes`
	MATHEMATICA	`palq[n_] := IntegerDigits[n]==Reverse[IntegerDigits[n]]; Select[Range[700], palq[ # ]&&!PrimeQ[ # ]&]`
	CROSSREFS	`Cf. A002385.` `Sequence in context: A121719 A162738 A161600 this_sequence A078337 A046351 A161732` `Adjacent sequences: A032347 A032348 A032349 this_sequence A032351 A032352 A032353`
	KEYWORD	`easy,nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com)`
	EXTENSIONS	`Edited by Dean Hickerson (dean.hickerson(AT)yahoo.com), Oct 22 2002`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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