id:A098770 - OEIS Search Results

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Abundant numbers whose reversal is a deficient number.

+0
2

12, 18, 20, 30, 36, 40, 54, 56, 70, 72, 78, 80, 90, 96, 100, 102, 104, 108, 112, 114, 120, 126, 132, 138, 140, 144, 150, 156, 160, 162, 168, 174, 176, 180, 186, 192, 196, 198, 200, 208, 220, 224, 260, 280, 300, 304, 306, 308, 312, 318, 320, 324, 330, 336, 340 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(2)=18 because 18 is the second abundant number which on reversing its digits gives a deficient number, namely 81.`
	CROSSREFS	`Cf. A005100, A005101.` `Sequence in context: A072357 A054753 A098899 this_sequence A091191 A071927 A031207` `Adjacent sequences: A098767 A098768 A098769 this_sequence A098771 A098772 A098773`
	KEYWORD	`easy,nonn,base`
	AUTHOR	`Shyam Sunder Gupta (guptass(AT)rediffmail.com), Oct 02 2004`
	EXTENSIONS	`Edited by N. J. A. Sloane (njas(AT)research.att.com) at the suggestion of Andrew Plewe, May 21 2007`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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