id:A115897 - OEIS Search Results

Search: id:A115897

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Numbers n such that sigma(n)+phi(n) is a palindrome.

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5

1, 2, 3, 4, 10, 11, 21, 49, 92, 101, 115, 131, 145, 186, 200, 201, 206, 207, 221, 226, 227, 240, 272, 302, 310, 313, 327, 342, 344, 370, 374, 388, 403, 406, 409, 413, 419, 425, 439, 449, 880, 948, 1015, 1055, 1132, 1165, 1385, 1443, 1680, 1755, 1785 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`sigma(1055)+phi(1055)=1272+840=2112.`
	CROSSREFS	`Cf. A115895, A115896.` `Sequence in context: A047455 A039002 A120023 this_sequence A116019 A087460 A082866` `Adjacent sequences: A115894 A115895 A115896 this_sequence A115898 A115899 A115900`
	KEYWORD	`nonn,base`
	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.

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