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.

A057545 Maximum cycle size in range [A014137(n-1)..A014138(n-1)] of permutation A057505/A057506.

Original entry on oeis.org

1, 1, 2, 3, 6, 6, 24, 72, 144, 147, 588, 672, 2136, 10152, 11520, 29484, 117936, 270576, 656352, 2062368, 4040160
Offset: 0

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Author

Antti Karttunen, Sep 07 2000

Keywords

Comments

For the convenience of the range notation above, we define A014137(-1) and A014138(-1) as zero.
Equal to the degree of the polynomials M_n(x) Donaghey gives on the page 81 of his paper.
Factored terms: 1, 1, 2, 3, 2*3, 2*3, 2^3 * 3, 2^3 * 3^2, 2^4 * 3^2, 3 * 7^2, 2^2 * 3 * 7^2, 2^5 * 3 * 7, 2^3 * 3 * 89, 2^3 * 3^3 * 47, 2^8 * 3^2 * 5, 2^2 * 3^4 * 7 * 13, 2^4 * 3^4 * 7 * 13, 2^4 * 3^2 * 1879, 2^5 * 3^2 * 43 * 53, 2^5 * 3^3 * 7 * 11 * 31, 2^5 * 3 * 5 * 19 * 443

Crossrefs

Occurs for first time in A073203 as row 2614.

A060114 Least common multiple of all cycle sizes in range [A014137(n-1)..A014138(n-1)] of permutation A057505/A057506.

Original entry on oeis.org

1, 1, 2, 6, 6, 30, 120, 720, 15120, 1164240, 15135120, 283931716867999200, 14510088480716327580681600, 3280681990411073806237542217555200, 936436634805345771521186435213604447980767985241556128000
Offset: 0

Views

Author

Antti Karttunen, Mar 01 2001

Keywords

Comments

For the convenience of the range notation above, we define A014137(-1) and A014138(-1) as zero.
This sequence grows so fast that it seems hopeless to count A057507 with Burnside's (orbit-counting) lemma.

Crossrefs

Occurs for first time in A073204 as row 2614.

A081166 Number of distinct primes dividing A060114(n).

Original entry on oeis.org

0, 0, 1, 2, 2, 3, 3, 3, 4, 5, 6, 12, 16, 20, 31, 50, 70, 106, 143
Offset: 0

Views

Author

Antti Karttunen and Wouter Meeussen, Mar 10 2003

Keywords

Crossrefs

Formula

a(n) = A001221(A060114(n)).
Showing 1-3 of 3 results.