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A274281 Numbers that are a product of distinct Lucas numbers (2,1,3,4,7,11,...) 4
1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 18, 21, 22, 24, 28, 29, 33, 36, 42, 44, 47, 54, 56, 58, 66, 72, 76, 77, 84, 87, 88, 94, 108, 116, 123, 126, 132, 141, 144, 152, 154, 168, 174, 188, 198, 199, 203, 216, 228, 231, 232, 246, 252, 264, 282, 304, 308, 319, 322 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
See the Comment on distinct-product sequences in A160009.
LINKS
EXAMPLE
The Lucas numbers are 2,1,3,4,7,11,18,29,..., so that the sequence of all products of distinct Lucas numbers, in increasing order, are 1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 18, 21, 22, 24, 28, 29,...
MATHEMATICA
f[1] = 2; f[2] = 1; z = 32; f[n_] := f[n - 1] + f[n - 2]; f = Table[f[n], {n, 1, z}]; f
s = {1}; Do[s = Union[s, Select[s*f[[i]], # <= f[[z]] &]], {i, z}]; s
CROSSREFS
Sequence in context: A052499 A104739 A192047 * A050116 A061985 A352804
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jun 17 2016
STATUS
approved

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Last modified July 21 01:14 EDT 2024. Contains 374462 sequences. (Running on oeis4.)