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A120654 Row 6 of array in A105272. 1
2, 2, 4, 14, 6, 10, 12, 12, 7, 15, 56, 90, 9, 9, 51, 21, 105, 23, 5, 5, 22, 24, 72, 66, 6, 6, 132, 20, 36, 4, 4, 4, 228, 396, 510, 48, 3, 3, 42, 2340, 48, 880, 14, 14, 2088, 336, 2604, 2040, 10, 10, 52, 4290, 2142, 4256, 60, 60, 385, 705, 180, 360, 33, 33, 8004, 3995, 702 (list; graph; refs; listen; history; text; internal format)
OFFSET

6,1

LINKS

Table of n, a(n) for n=6..70.

MATHEMATICA

k = 6;

Table[fp = {};

For[col = k, col > 0, col--,

  For[row = 0, col + row*k <= n, row++,

   AppendTo[fp, col + row*k]]];

LCM @@ Length /@ First[FindPermutation[Range[n], fp]], {n, k,

76}] (* Robert Price, Aug 26 2019 *)

CROSSREFS

Sequence in context: A206650 A268049 A267911 * A121514 A121526 A153956

Adjacent sequences:  A120651 A120652 A120653 * A120655 A120656 A120657

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Aug 10 2008, based on email from Samuel Minter (abulsme(AT)abulsme.com0, May 08 2008, Aug 10 2008

EXTENSIONS

Extended beyond a(15) by R. J. Mathar, Aug 12 2008

STATUS

approved

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Last modified September 23 18:51 EDT 2020. Contains 337315 sequences. (Running on oeis4.)