cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A274371 Numbers that are a product of distinct Fibonacci numbers (A000045) and also a product of distinct Lucas numbers (A000032, including 2).

Original entry on oeis.org

1, 2, 3, 6, 8, 21, 24, 42, 126, 144, 168, 432, 504, 987, 1008, 1974, 3024, 5922, 7896, 23688, 46368, 47376, 139104, 142128, 973728, 2178309, 4356618, 13069854, 17426472, 45765216, 52279416, 104558832, 313676496, 4807526976, 14422580928, 100958066496
Offset: 1

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Author

Clark Kimberling, Jun 19 2016

Keywords

Comments

Contains A273803 as a subsequence.

Examples

			504 = 3*8*21 = 4*7*18.
		

Crossrefs

Programs

  • Mathematica
    s = {1}; z = 60; f = Fibonacci[2 + Range[z]]; Do[s = Union[s, Select[s*f[[i]], # <= f[[z]] &]], {i, z}]; s = Prepend[s, 0];  u = Take[s, 100]
    g = LucasL[-1 + Range[z]]; t = {1}; Do[t = Union[t, Select[t*g[[i]], # <= g[[z]] &]], {i, z}]; w = Intersection[s, t]
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