A274284 - OEIS

%I #4 Jun 18 2016 00:40:05

%S 2,4,6,8,10,12,16,20,24,26,32,40,42,48,52,60,64,68,80,84,96,104,110,

%T 120,128,136,156,160,168,178,192,208,220,240,252,260,272,288,312,320,

%U 336,356,384,408,416,420,440,466,480,504,520,544,576,624,640,660,672

%N Numbers that are a product of distinct numbers in A006355.

%C See the Comment on distinct-product sequences in A160009.

%H Clark Kimberling, <a href="/A274284/b274284.txt">Table of n, a(n) for n = 1..1000</a>

%e 8 = 2*4, 480 = 2*4*6*10.

%t f[1] = 2; f[2] = 4; z = 32; f[n_] := f[n - 1] + f[n - 2]; f = Table[f[n], {n, 1, z}]; f

%t s = {2}; Do[s = Union[s, Select[s*f[[i]], # <= f[[z]] &]], {i, z}]; s

%Y Cf. A160009.

%K nonn,easy

%O 1,1

%A _Clark Kimberling_, Jun 17 2016