A274348 Products of three distinct Lucas numbers (3,4,7,11,18,...)

84, 132, 216, 231, 308, 348, 378, 504, 564, 594, 609, 792, 812, 912, 957, 987, 1276, 1316, 1386, 1476, 1551, 1566, 1596, 2068, 2088, 2128, 2233, 2388, 2508, 2538, 2583, 3344, 3384, 3444, 3619, 3654, 3864, 4059, 4089, 4104, 4179, 5412, 5452, 5472, 5572, 5742

Offset

1,1

Links

Table of n, a(n) for n=1..46.

Example

84 = 3*4*7, 132 = 3*4*11.

Mathematica

z = 100; f[n_] := LucasL[n];
Take[Sort[Flatten[Table[f[u] f[v] f[w], {u, 2, z}, {v, 2, u - 1}, {w, 2, v - 1}]]], z]

Crossrefs

Cf. A000032, A274349, A274348, A271354, A272949.

Sequence in context: A015708 A114822 A099637 * A143758 A101260 A141502

Adjacent sequences: A274345 A274346 A274347 * A274349 A274350 A274351

Keyword

nonn,easy

Author

Clark Kimberling, Jun 18 2016

Status

approved