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.

Showing 1-3 of 3 results.

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}.

Original entry on oeis.org

1, 12, 60, 214, 600, 1443, 3089
Offset: 1

Views

Author

Chai Wah Wu, Jul 28 2015

Keywords

Comments

See Wu link for sets of permutations that achieve the value of a(n).

Links

Crossrefs

Cf. A000292 (two permutations), A070735 (three permutations), A070736 (four permutations), A260357 (six permutations), A260358 (seven permutations), A260359 (eight permutations), A260355.

A260357 a(n) is the minimal value of Sum_{i=1..n} Product_{j=1..6} r_j(i), where each r_j is a permutation of {1,2,...,n}.

Original entry on oeis.org

1, 16, 108, 472, 1564, 4320
Offset: 1

Views

Author

Chai Wah Wu, Jul 28 2015

Keywords

Comments

See arXiv link for sets of permutations that achieve the value of a(n).

Links

Crossrefs

Cf. A000292 (two permutations), A070735 (three permutations), A070736 (four permutations), A260356 (five permutations), A260358 (seven permutations), A260359 (eight permutations), A260355.

A260358 a(n) is the minimal value of Sum_{i=1..n} Product_{j=1..7} r_j(i), where each r_j is a permutation of {1,2,...,n}.

Original entry on oeis.org

1, 24, 198, 1043, 4074
Offset: 1

Views

Author

Chai Wah Wu, Jul 28 2015

Keywords

Comments

See arXiv link for sets of permutations that achieve the value of a(n).

Links

Crossrefs

Cf. A000292 (two permutations), A070735 (three permutations), A070736 (four permutations), A260356 (five permutations), A260357 (six permutations), A260359 (eight permutations), A260355.
Showing 1-3 of 3 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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