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.

A361125 Indices of records in A361103.

Original entry on oeis.org

0, 1, 2, 3, 4, 5, 9, 10, 11, 18, 22, 24, 28, 29, 38, 42, 47, 52, 54, 57, 59, 66, 68, 72, 75, 77, 80, 83, 86, 92, 94, 98, 104, 107, 114, 115, 118, 119, 121, 124, 127, 131, 133, 135, 138, 143, 149, 163, 165, 175, 181, 188, 197, 199, 202, 204, 206, 211, 213, 216, 218, 222
Offset: 1

Views

Author

Scott R. Shannon and N. J. A. Sloane, Mar 05 2023

Keywords

Links

Crossrefs

Cf. A360519, A361103, A361124, A361126.

A361104 a(n) = k such that A361103(k-1) = n, or -1 if n never appears in A361103.

Original entry on oeis.org

1, 2, 3, 17, 9, 4, 8, 31, 15, 7, 5, 47, 64, 6, 21, 10, 96, 20, 11, 13, 57, 38, 14, 16, 79, 37, 18, 12, 160, 28, 22, 19, 61, 24, 26, 23, 131, 52, 27, 25, 41, 33, 46, 29, 77, 45, 42, 34, 54, 59, 36, 32, 68, 72, 44, 40, 104, 82, 50, 49, 75, 111, 51, 35, 98, 143, 63, 30, 85
Offset: 1

Views

Author

Scott R. Shannon and N. J. A. Sloane, Mar 02 2023

Keywords

Comments

Imagine the offset of A361103 is 1, and assume it really is a permutation of the natural numbers. In tabular form, it is
..1..2..3..4..5..6..7..8..9.10.11...
..1..2..3..6.11.14.10..7..5.16..19...
Then the inverse permutation would be
..1..2..3.17..9..4..8.31.15..7..5.47...
which is the present sequence.

Examples

			A361103(16) = 4, so a(4) = 17.

Links

Crossrefs

Cf. A360519, A361102, A336957, A361103.

Extensions

Edited by N. J. A. Sloane, Mar 04 2023

A361124 Records in A361103.

Original entry on oeis.org

1, 2, 3, 6, 11, 14, 16, 19, 28, 32, 36, 40, 44, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 112, 116, 120, 123, 132, 136, 139, 144, 148, 156, 160, 164, 171, 172, 175, 180, 184, 188, 192, 196, 200, 216, 220, 228, 236, 244, 248, 256, 271, 272, 276, 280, 284, 288, 292, 296
Offset: 1

Views

Author

Scott R. Shannon and N. J. A. Sloane, Mar 05 2023

Keywords

Comments

These are the terms in C (A361102) that are the slowest to appear in A360519.

Links

Crossrefs

Cf. A360519, A361103, A361125, A361126.
Showing 1-3 of 3 results.

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

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