id:A114120 - OEIS Search Results

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Palindromes which are not the arithmetic mean of two distinct palindromes.

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11, 10901, 109901, 1090901, 1099901, 10900901, 10999901, 100909001, 109000901, 109090901, 109909901, 109999901, 1090000901, 1090990901, 1099009901, 1099999901, 10090909001, 10900000901, 10900900901, 10909090901, 10909990901 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`191 is not in the sequence since it is the arithmetic mean of two distinct palindromes, 9 and 373.`
	CROSSREFS	`Cf. A083158.` `Sequence in context: A114754 A121520 A083442 this_sequence A118557 A138713 A068223` `Adjacent sequences: A114117 A114118 A114119 this_sequence A114121 A114122 A114123`
	KEYWORD	`base,nonn`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

AT&T Labs Research