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 1-5 of 5 results.

A163893 First differences of A163891.

Original entry on oeis.org

2, 2, 1, 19, 9, 35, 8, 20, 294, 146, 25, 531, 1, 63, 64, 334, 4688, 2223, 119, 393, 8976, 547, 1064, 79832, 477, 1571, 35842, 6347, 135987, 2, 7486, 140, 110337, 4211, 1195924, 249, 563, 24576, 543981, 29488, 995, 30
Offset: 0

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Author

Antti Karttunen, Sep 19 2009

Keywords

Crossrefs

Formula

a(n) = A163891(n+1)-A163891(n).

A163890 Orbit size of n in permutation A163355.

Original entry on oeis.org

1, 1, 2, 2, 6, 3, 3, 6, 6, 6, 3, 3, 6, 3, 6, 3, 1, 3, 3, 3, 1, 1, 2, 2, 4, 2, 2, 4, 4, 2, 4, 2, 4, 8, 8, 4, 4, 2, 2, 4, 2, 2, 2, 2, 8, 8, 4, 4, 4, 4, 8, 8, 4, 2, 4, 2, 4, 8, 4, 8, 2, 2, 2, 2, 6, 6, 6, 6, 12, 6, 6, 12, 12, 12, 6, 6, 18, 18, 18, 6, 3, 3, 6, 6, 6, 3, 3, 6, 6, 6, 3, 3, 6, 3, 6, 3, 9, 18
Offset: 0

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Author

Antti Karttunen, Sep 19 2009

Keywords

Comments

Will all terms of A003586 eventually appear?

Crossrefs

Programs

  • Scheme
    (define (A163890 n) (let loop ((i 1) (nn (A163355 n))) (cond ((= nn n) i) (else (loop (1+ i) (A163355 nn))))))

A163911 Maximum cycle size in range [A000302(n-1)..A024036(n)] of permutation A163355/A163356.

Original entry on oeis.org

1, 2, 6, 8, 18, 32, 108, 216, 324, 1944, 1944
Offset: 0

Views

Author

Antti Karttunen, Sep 19 2009

Keywords

Crossrefs

A163892 Distinct values in A163890 in the order of appearance.

Original entry on oeis.org

1, 2, 6, 3, 4, 8, 12, 18, 9, 16, 32, 24, 108, 36, 48, 54, 72, 64, 96, 192, 216, 324, 144, 162, 288, 576, 648, 384, 1944, 432, 864, 486, 972, 1296, 27, 768, 1152, 128, 5832, 1728, 1536, 3456, 2304
Offset: 0

Views

Author

Antti Karttunen, Sep 19 2009

Keywords

Comments

Probably a permutation of A003586 (A036561).

Crossrefs

a(n) = A163890(A163891(n)). See also A163891, A163893, A163894, A163912.

A163896 Record values of A163894.

Original entry on oeis.org

0, 2, 4, 24, 33, 76, 390, 536, 1092, 6242, 17953, 137286, 143633
Offset: 0

Views

Author

Antti Karttunen, Sep 19 2009

Keywords

Crossrefs

Showing 1-5 of 5 results.