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 1-6 of 6 results.

A084461 Permutation of Z, obtained by reflecting the juggling sequence A084458 from positive to negative numbers (with zero thrown at beat 0), folded to N with functions N2Z and Z2N.

Original entry on oeis.org

1, 10, 2, 12, 4, 18, 6, 8, 9, 20, 3, 28, 5, 14, 15, 16, 17, 24, 7, 34, 11, 22, 23, 38, 19, 26, 27, 46, 13, 30, 31, 32, 33, 48, 21, 36, 37, 58, 25, 40, 41, 42, 43, 44, 45, 60, 29, 72, 35, 50, 51, 52, 53, 54, 55, 56, 57, 66, 39, 80, 47, 62, 63, 64, 65, 84, 59, 68, 69, 70, 71, 94
Offset: 1

Views

Author

Antti Karttunen, Jun 02 2003

Keywords

Comments

This permutation consists of three infinite cycles + infinite number of fixed points.

Crossrefs

Programs

  • Maple
    [seq(Z2N(A084461_Z2Z(N2Z(n))),n=1..45)];
    N2Z := n -> ((-1)^n)*floor(n/2);
    Z2N := z -> 2*abs(z)+`if`((z < 1),1,0);
    A084461_Z2Z := z -> z+`if`((z > 0), A084458(z),`if`((z >= -3),2*(-z), A084458(A084460((-z)-3))));

A084457 Juggling states associated with the juggling sequence A084458.

Original entry on oeis.org

7, 11, 13, 38, 19, 25, 140, 70, 35, 21, 74, 37, 82, 41, 276, 138, 69, 98, 49, 536, 268, 134, 67, 97, 2096, 1048, 524, 262, 131, 73, 548, 274, 137, 324, 162, 81, 1064, 532, 266, 133, 322, 161, 4176, 2088, 1044, 522, 261, 386, 193, 8288, 4144, 2072, 1036, 518, 259, 145
Offset: 0

Views

Author

Antti Karttunen, Jun 02 2003

Keywords

Crossrefs

Same sequence in binary: A084456.
Terms that are odd: A084467.

Formula

a(0)=7, a(n) = (A084457(n-1) + 2^A084458(n) - 1)/2.

A084459 a(n) = n + A084458(n) - 3.

Original entry on oeis.org

2, 3, 6, 1, 7, 11, 4, 5, 9, 14, 8, 16, 10, 20, 12, 13, 21, 15, 26, 17, 18, 19, 27, 33, 22, 23, 24, 25, 30, 37, 28, 29, 39, 31, 32, 44, 34, 35, 36, 46, 38, 52, 40, 41, 42, 43, 53, 45, 60, 47, 48, 49, 50, 51, 57, 65, 54, 55, 56, 68, 58, 59, 74, 61, 62, 63, 64, 76, 66, 67, 83, 69
Offset: 1

Views

Author

Antti Karttunen, Jun 02 2003

Keywords

Crossrefs

A084463 Positions of even juggling states in A084457, i.e., positions of zeros in A084458 - 1.

Original entry on oeis.org

3, 6, 7, 10, 12, 14, 15, 17, 19, 20, 21, 24, 25, 26, 27, 30, 31, 33, 34, 36, 37, 38, 40, 42, 43, 44, 45, 47, 49, 50, 51, 52, 53, 56, 57, 58, 60, 61, 63, 64, 65, 66, 68, 69, 71, 72, 73, 74, 75, 77, 79, 80, 81, 82, 83, 84, 87, 88, 89, 91, 92, 93, 95, 96, 97, 98, 100, 101, 102
Offset: 1

Views

Author

Antti Karttunen, Jun 02 2003

Keywords

Crossrefs

Complement: A084464.

A084464 Positions of odd juggling states in A084457, i.e., positions of nonzero-throws in A084458 - 1.

Original entry on oeis.org

0, 1, 2, 4, 5, 8, 9, 11, 13, 16, 18, 22, 23, 28, 29, 32, 35, 39, 41, 46, 48, 54, 55, 59, 62, 67, 70, 76, 78, 85, 86, 90, 94, 99, 103, 109, 112, 119, 121, 129, 130, 139, 140, 145, 150, 156, 160, 167, 170, 178, 180, 189, 191, 201, 202, 208, 213, 220, 224, 232, 235, 244
Offset: 1

Views

Author

Antti Karttunen, Jun 02 2003

Keywords

Crossrefs

Complement: A084463. Used to compute A084467.

A084452 An infinite juggling sequence with three balls: a(n) is zero when A084451(n-1) is even, otherwise the least (lowest) throw such that the resulting next juggling state A084451(n) does not occur in A084451[0..n-1].

Original entry on oeis.org

4, 4, 4, 0, 5, 5, 5, 0, 0, 6, 3, 5, 0, 5, 0, 6, 6, 0, 6, 0, 0, 7, 3, 0, 6, 6, 0, 0, 7, 0, 6, 6, 0, 0, 0, 7, 7, 7, 0, 0, 0, 0, 8, 4, 7, 0, 0, 7, 0, 0, 8, 5, 0, 0, 7, 0, 7, 0, 8, 0, 0, 8, 0, 8, 0, 0, 9, 0, 0, 7, 0, 7, 0, 0, 0, 8, 8, 0, 8, 0, 0, 0, 0, 9, 3, 0, 8, 1, 7, 0, 0, 0, 9, 0, 8, 8, 0, 0, 0, 0, 0, 9, 5, 8, 0
Offset: 1

Views

Author

Antti Karttunen, Jun 02 2003

Keywords

Comments

Note that after the zero-throws the resulting next juggling state might be one encountered before. See A084458 for variant in which this does not happen.
Showing 1-6 of 6 results.