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A274286 Numbers that are a product of distinct numbers in row 2 of the Wythoff array, A035513. 3

%I #5 Jun 18 2016 00:40:20

%S 4,7,11,18,28,29,44,47,72,76,77,116,123,126,188,198,199,203,304,308,

%T 319,322,329,492,504,517,521,522,532,792,796,812,836,843,846,861,1276,

%U 1288,1316,1353,1363,1364,1368,1386,1393,2068,2084,2088,2128,2189,2204

%N Numbers that are a product of distinct numbers in row 2 of the Wythoff array, A035513.

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

%H Clark Kimberling, <a href="/A274286/b274286.txt">Table of n, a(n) for n = 1..1000</a>

%e 28 = 4*7, 308 = 4*7*11.

%t f[1] = 4; f[2] = 7; z = 33; f[n_] := f[n - 1] + f[n - 2]; f = Table[f[n], {n, 1, z}]; f

%t s = {1}; Do[s = Union[s, Select[s*f[[i]], # <= f[[z]] &]], {i, z}]; s1 = Rest[s]

%Y Cf. A160009, A274280.

%K nonn,easy

%O 1,1

%A _Clark Kimberling_, Jun 17 2016

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)