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 1-10 of 10 results.

A379786 a(n) = A379059(n) - 2*n.

Original entry on oeis.org

0, -1, -2, -1, -2, -3, -2, -3, -4, 4, 3, 2, 1, -5, 5, 4, 3, 2, -4, 8, 5, 2, 4, 1, 4, -7, -3, -4, -5, 6, 3, 0, -3, -1, -2, -3, -4, -5, -6, -7, -8, -9, -2, -3, -4, -5, -6, -7, -8, -9, -10, -1, -2, -3, -4, -5, -6, -7, -8, -9, -10, -11, -2, -3, -4, -5, -6, -7, -8, -9, -10, -11, -12, 2, 1, 0, -1, -2, -3, -4, -5, -6, -7, -8, -9, -10, 16, 13
Offset: 0

Views

Author

N. J. A. Sloane, Jan 13 2025

Keywords

Comments

Conjecture: For n >= 10, |a(n)| < 2*sqrt(n); for n >= 1000, |a(n)| < 1.59*sqrt(n). - N. J. A. Sloane, Jan 19 2025

Crossrefs

A379063 a(n) = min{A379059(n), A379060(n)}.

Original entry on oeis.org

0, 1, 2, 5, 6, 7, 10, 11, 12, 17, 18, 19, 20, 21, 27, 28, 29, 30, 31, 37, 38, 39, 40, 41, 42, 43, 49, 50, 51, 57, 58, 59, 60, 65, 66, 67, 68, 69, 70, 71, 72, 73, 82, 83, 84, 85, 86, 87, 88, 89, 90, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 144, 145, 146, 151, 152, 153, 154, 155, 156, 157, 158, 159
Offset: 0

Views

Author

N. J. A. Sloane, Dec 27 2024

Keywords

Crossrefs

A379064 a(n) = max{A379059(n), A379060(n)}.

Original entry on oeis.org

0, 4, 3, 9, 8, 16, 15, 14, 13, 22, 23, 24, 25, 26, 33, 34, 35, 36, 32, 46, 45, 44, 48, 47, 52, 53, 54, 55, 56, 64, 63, 62, 61, 78, 77, 76, 75, 79, 80, 81, 74, 92, 93, 94, 95, 96, 97, 98, 99, 100, 91, 113, 114, 115, 116, 117, 118, 119, 120, 121, 112, 136, 135, 134, 138, 137, 141, 140, 139, 143, 142, 147, 133, 148, 149, 150, 163, 164, 165, 166, 162, 169, 168, 167, 161, 170
Offset: 0

Views

Author

N. J. A. Sloane, Dec 27 2024

Keywords

Crossrefs

A379808 Indices of records in A379059.

Original entry on oeis.org

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 19, 22, 24, 29, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 90, 91, 92, 93, 94, 95, 96, 97, 99, 101, 105, 106
Offset: 1

Views

Author

N. J. A. Sloane, Feb 01 2025

Keywords

Crossrefs

A379807 Records in A379059.

Original entry on oeis.org

0, 1, 2, 5, 6, 7, 10, 11, 12, 22, 23, 24, 25, 33, 34, 35, 36, 46, 48, 52, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 82, 83, 84, 85, 86, 87, 88, 89, 90, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 188, 189
Offset: 1

Views

Author

N. J. A. Sloane, Feb 01 2025

Keywords

Crossrefs

A379060 Index of -n in A377091, or -1 if n does not appear there.

Original entry on oeis.org

0, 4, 3, 9, 8, 16, 15, 14, 13, 17, 18, 19, 20, 26, 27, 28, 29, 30, 31, 37, 38, 39, 40, 41, 42, 53, 54, 55, 56, 57, 58, 59, 60, 78, 77, 76, 75, 79, 80, 81, 74, 92, 93, 94, 95, 96, 97, 98, 99, 100, 91, 113, 114, 115, 116, 117, 118, 119, 120, 121, 112, 136, 135, 134, 138, 137, 141, 140, 139, 143, 142, 147, 133, 144, 145, 146, 163, 164, 165, 166, 162, 169, 168, 167, 161, 170
Offset: 0

Views

Author

N. J. A. Sloane, Dec 26 2024

Keywords

Crossrefs

A382715 The term in A377091 that immediately precedes n, or 0 if n does not appear in A377091.

Original entry on oeis.org

0, 1, -1, 3, 4, -3, 6, 7, 13, 9, 10, 11, -12, 18, 14, 15, 16, -18, 20, 21, 25, 23, 19, 28, -24, 22, 26, 27, 30, 31, 32, -32, 29, 33, 34, 35, 36, 37, 38, 39, 40, -39, 42, 43, 44, 45, 46, 47, 48, 49, -49, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, -59, 62, 63, 64, 65
Offset: 1

Views

Author

N. J. A. Sloane, Apr 09 2025

Keywords

Comments

It is a strong conjecture that every integer appears in A377091, so it is unlikely there will be a second 0 term.

Examples

			A377091(9) = -3 is followed by A377091(10) = 6, so a(6) = -3.
		

Crossrefs

A379065 a(n) = A379064(n) - A379063(n).

Original entry on oeis.org

0, 3, 1, 4, 2, 9, 5, 3, 1, 5, 5, 5, 5, 5, 6, 6, 6, 6, 1, 9, 7, 5, 8, 6, 10, 10, 5, 5, 5, 7, 5, 3, 1, 13, 11, 9, 7, 10, 10, 10, 2, 19, 11, 11, 11, 11, 11, 11, 11, 11, 1, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 25, 13, 11, 14, 12, 15, 13, 11, 14, 12, 16, 1, 4, 4, 4, 12, 12, 12, 12, 7, 13, 11, 9, 2, 10, 17, 15, 13, 11, 14, 14, 14, 14, 14, 14, 14, 14, 1, 17, 15, 18, 16, 14, 10
Offset: 0

Views

Author

N. J. A. Sloane, Dec 27 2024

Keywords

Comments

This is the number of steps between the appearances of n and -n in A377091.

Crossrefs

A379787 a(n) = A379060(n) - 2*n.

Original entry on oeis.org

0, 2, -1, 3, 0, 6, 3, 0, -3, -1, -2, -3, -4, 0, -1, -2, -3, -4, -5, -1, -2, -3, -4, -5, -6, 3, 2, 1, 0, -1, -2, -3, -4, 12, 9, 6, 3, 5, 4, 3, -6, 10, 9, 8, 7, 6, 5, 4, 3, 2, -9, 11, 10, 9, 8, 7, 6, 5, 4, 3, -8, 14, 11, 8, 10, 7, 9, 6, 3, 5, 2, 5, -11, -2, -3, -4, 11, 10, 9, 8, 2, 7, 4, 1, -7, 0, -1, -2, -3, -4, -5, -6, -7, -8, -9, -10, -11
Offset: 0

Views

Author

N. J. A. Sloane, Jan 13 2025

Keywords

Crossrefs

A379069 Nonnegative numbers k such that the index of -k in A377091 is <= the index of k.

Original entry on oeis.org

0, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 29, 30, 31, 32, 73, 74, 75, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 146, 147, 148
Offset: 1

Views

Author

N. J. A. Sloane, Dec 28 2024

Keywords

Comments

Numbers k >= 0 such that A379060(k) <= A379059(k).

Crossrefs

Showing 1-10 of 10 results.