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 A195900 Numbers n for which sigma(n) = 2 mod 4 and omega(sigma(n)/2) < omega(n). 0
 10, 34, 52, 90, 106, 306, 388, 468, 490, 810, 850, 954, 976, 1300, 1525, 1666, 1690, 2650, 2754, 2890, 3033, 3050, 3492, 3610, 3626, 4194, 4212, 4410, 5194, 5200, 5746, 6066, 6100, 6292, 6516, 6800, 7290, 7650, 8586, 8746, 8784, 9610, 9700 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..43. Terry Trotter, Smith's problem [Warning: As of March 2018 this site appears to have been hacked. Proceed with great caution. The original content should be retrieved from the Wayback machine and added here. - N. J. A. Sloane, Mar 29 2018] PROG (PARI) for(n=1, 1e6, s=sigma(n); if(s%4==2&&omega(s/2)

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Last modified December 10 19:44 EST 2023. Contains 367717 sequences. (Running on oeis4.)