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 A181487 Numbers n < sum( d : d|n, d
 12, 18, 20, 30, 42, 48, 56, 66, 70, 72, 78, 80, 84, 88, 90, 102, 104, 108, 114, 120, 138, 150, 162, 174, 180, 186, 192, 196, 200, 210, 220, 222, 246, 252, 258, 260, 264, 270, 272, 280, 282, 288, 294, 300, 304, 308, 312, 318, 320, 330, 336, 340, 354, 364, 366 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS This is the complement of the set S occurring in S-perfect numbers A118372. LINKS Donovan Johnson, Table of n, a(n) for n = 1..10000 PROG (PARI) A181487(Nmax) = { my(C=0); for(n=2, Nmax, sumdiv(n, d, !bittest(C, d)*d)>2*n & !print1(n", ") & C+=1<

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Last modified December 9 23:05 EST 2022. Contains 358710 sequences. (Running on oeis4.)