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A260359
a(n) is the minimal value of Sum_{i=1..n} Product_{j=1..8} r_j(i), where each r_j is a permutation of {1,2,...,n}.
3
1, 32, 360, 2304, 10618
OFFSET
1,2
COMMENTS
See arXiv link for sets of permutations that achieve the value of a(n).
CROSSREFS
Cf. A000292 (two permutations), A070735 (three permutations), A070736 (four permutations), A260356 (five permutations), A260357 (six permutations), A260358 (seven permutations), A260355.
Sequence in context: A200531 A302320 A303014 * A105250 A302818 A303511
KEYWORD
nonn,more
AUTHOR
Chai Wah Wu, Jul 28 2015
STATUS
approved