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A260356 a(n) is the minimal value of Sum_{i=1..n} Product_{j=1..5} r_j(i), where each r_j is a permutation of {1,2,...,n}. 3
1, 12, 60, 214, 600, 1443, 3089 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
See Wu link for sets of permutations that achieve the value of a(n).
LINKS
Chai Wah Wu, Permutations r_j such that ∑i∏j r_j(i) is maximized or minimized. arXiv:1508.02934 [math.CO], 2015.
CROSSREFS
Cf. A000292 (two permutations), A070735 (three permutations), A070736 (four permutations), A260357 (six permutations), A260358 (seven permutations), A260359 (eight permutations), A260355.
Sequence in context: A012581 A012288 A012582 * A120571 A086950 A370700
KEYWORD
nonn,more
AUTHOR
Chai Wah Wu, Jul 28 2015
STATUS
approved

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)