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 A101259 Numbers n whose deficiency is 54. 0
 87, 195, 244, 495, 11584, 35595, 137452847104 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS No more elements found up to 2*10^7. - Stefan Steinerberger, Feb 04 2006 LINKS V. K. Tintschev, Cofacient Numbers. EXAMPLE 87 is a term of the sequence because 3*29 = 87 and 87 - 29 - 3 = g(87) = 55 [see Tintschev link]. MATHEMATICA Do[ If[ DivisorSigma[1, n] + 54 == 2n, Print[n]], {n, 10^7}] (* Robert G. Wilson v, Dec 22 2004 *) PROG (MAGMA) [n: n in [1..2*10^7] | DivisorSigma(1, n)+54 eq 2*n]; // Vincenzo Librandi, Jul 30 2015 CROSSREFS Cf. A101223. Sequence in context: A044800 A067749 A063349 * A063336 A129515 A133524 Adjacent sequences:  A101256 A101257 A101258 * A101260 A101261 A101262 KEYWORD nonn,more AUTHOR Vassil K. Tintschev (tinchev(AT)sunhe.jinr.ru), Dec 17 2004 EXTENSIONS a(7) from Donovan Johnson, Dec 23 2008 STATUS approved

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Last modified December 2 05:20 EST 2020. Contains 338865 sequences. (Running on oeis4.)