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.

Previous Showing 11-16 of 16 results.

A102178 Iccanobirt semiprime indices (8 of 15): Indices of semiprime numbers in A102118.

Original entry on oeis.org

5, 9, 11, 16, 17, 18, 20, 30, 31, 41, 43, 54, 68, 69, 84, 135, 139, 174, 188, 191, 203, 207, 243, 301, 356
Offset: 1

Views

Author

Jonathan Vos Post and Ray Chandler, Dec 31 2004

Keywords

Crossrefs

Cf. A001358, A102118, A102171-A102185, A102198.

Formula

A102118(a(n)) = A102198(n).

Extensions

a(21)-a(22) from Robert Price, Nov 09 2018
Offset changed to 1 and a(23)-a(25) from Jinyuan Wang, Aug 14 2021

A102179 Iccanobirt semiprime indices (9 of 15): Indices of semiprime numbers in A102119.

Original entry on oeis.org

5, 9, 17, 18, 20, 25, 28, 29, 35, 41, 48, 50, 51, 58, 67, 74, 90, 94, 107, 108, 135, 137, 159, 165, 186, 254, 290
Offset: 1

Views

Author

Jonathan Vos Post and Ray Chandler, Dec 31 2004

Keywords

Crossrefs

Cf. A001358, A102119, A102171-A102185, A102199.

Formula

A102119(a(n)) = A102199(n).

Extensions

Offset changed to 1 and a(26)-a(27) from Jinyuan Wang, Aug 14 2021

A102180 Iccanobirt semiprime indices (10 of 15): Indices of semiprime numbers in A102120.

Original entry on oeis.org

5, 15, 18, 29, 30, 31, 32, 33, 44, 46, 59, 84, 95, 97, 98, 136, 154, 203, 207, 245, 262, 291, 323, 340, 362
Offset: 1

Views

Author

Jonathan Vos Post and Ray Chandler, Dec 31 2004

Keywords

Crossrefs

Cf. A001358, A102120, A102171-A102185, A102200.

Formula

A102120(a(n)) = A102200(n).

Extensions

a(18)-a(20) from Robert Price, Nov 10 2018
Offset changed to 1 and a(21)-a(25) from Jinyuan Wang, Aug 14 2021

A102181 Iccanobirt semiprime indices (11 of 15): Indices of semiprime numbers in A102121.

Original entry on oeis.org

5, 11, 12, 17, 18, 37, 38, 43, 44, 45, 55, 61, 70, 93, 103, 110, 120, 129, 174, 198, 241, 245, 277, 303, 342, 381, 393, 552, 590, 657, 708
Offset: 1

Views

Author

Jonathan Vos Post and Ray Chandler, Dec 31 2004

Keywords

Crossrefs

Cf. A001358, A102121, A102171-A102185, A102201.

Programs

Formula

A102121(a(n)) = A102201(n).

Extensions

Offset changed to 1 and a(21)-a(31) from Jinyuan Wang, Aug 14 2021

A102182 Iccanobirt semiprime indices (12 of 15): Indices of semiprime numbers in A102122.

Original entry on oeis.org

5, 9, 11, 18, 21, 29, 31, 64, 69, 76, 80, 81, 102, 111, 112, 120, 122, 133, 135, 136, 187, 212, 219, 314
Offset: 1

Views

Author

Jonathan Vos Post and Ray Chandler, Dec 31 2004

Keywords

Crossrefs

Cf. A001358, A102122, A102171-A102185, A102202.

Formula

A102122(a(n)) = A102202(n).

Extensions

a(22) from Robert Price, Nov 10 2018
Offset changed to 1 and a(23)-a(24) from Jinyuan Wang, Aug 14 2021

A102183 Iccanobirt semiprime indices (13 of 15): Indices of semiprime numbers in A102123.

Original entry on oeis.org

5, 9, 12, 15, 16, 17, 19, 21, 25, 28, 33, 35, 37, 46, 61, 63, 70, 71, 81, 82, 89, 90, 100, 103, 106, 121, 133, 147, 204, 212, 220, 263, 293, 311
Offset: 1

Views

Author

Jonathan Vos Post and Ray Chandler, Dec 31 2004

Keywords

Comments

No more terms through 200.

Crossrefs

Cf. A001358, A102123, A102171-A102185, A102203.

Formula

A102123(a(n)) = A102203(n).

Extensions

a(29)-a(31) from Robert Price, Nov 10 2018
Offset changed to 1 and a(32)-a(34) from Jinyuan Wang, Aug 15 2021
Previous Showing 11-16 of 16 results.

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

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