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.

A083156 a(n) = A083155(n+1)/A083155(n).

Original entry on oeis.org

19, 11, 91, 11, 163, 37, 91, 1001, 9901, 999001, 11, 9091, 99909001, 109889011
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003

Keywords

Crossrefs

Cf. A083155.

Extensions

Corrected and extended by Patrick De Geest, Jun 05 2003
a(13)-a(14) from Giovanni Resta, Sep 25 2019

A083147 a(1) = 1, a(n) = smallest nontrivial palindromic multiple of a(n-1). a(n) is not equal to a(n-1) or a concatenation of a(n-1) with itself.

Original entry on oeis.org

1, 2, 4, 8, 232, 464, 42224, 84448, 4053504, 44588544, 4057557504, 4053504004053504, 44588544044588544, 4057557508057557504, 401341233733484337332143104, 40130110362352332623325326301103104, 441431213985875658856578589312134144
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003

Keywords

Crossrefs

Extensions

More terms from Patrick De Geest, Jun 05 2003
a(17) from Giovanni Resta, Sep 25 2019

A083149 a(1) = 3, a(n) = smallest nontrivial palindromic multiple of a(n-1). a(n) is not equal to a(n-1) or a concatenation of a(n-1) with itself.

Original entry on oeis.org

3, 6, 222, 444, 888, 21312, 42624, 468864, 40322304, 80644608, 802494494208, 213525880454088525312, 213525880454088738837880454088525312
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003

Keywords

Comments

Multiplier for a(12) is larger than 2000000000.

Crossrefs

Extensions

More terms from Patrick De Geest, Jun 05 2003
a(13) from Giovanni Resta, Sep 22 2019

A083153 a(1) = 7, a(n) = smallest nontrivial palindromic multiple of a(n-1). a(n) is not equal to a(n-1) or a concatenation of a(n-1) with itself.

Original entry on oeis.org

7, 161, 1771, 161161, 1772771, 414828414, 4107216127014, 45179377397154, 410725719917527014, 210233245545545542332012, 210023222533245542335222320012, 21212345475857799775857454321212, 2100232225542478645885468742455222320012
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003

Keywords

Crossrefs

Extensions

More terms from Patrick De Geest, Jun 05 2003
a(13) from Giovanni Resta, Sep 25 2019

A083151 a(1) = 5, a(n) = smallest nontrivial palindromic multiple of a(n-1). a(n) is not equal to a(n-1) or a concatenation of a(n-1) with itself.

Original entry on oeis.org

5, 505, 5555, 505505, 5005005005, 55055055055, 50155155155105, 5464353998993534645, 541025148469303964841520145, 513016415223221833242338122322514610315, 5130164152232218845439796446446979345488122322514610315
Offset: 1

Views

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 25 2003

Keywords

Comments

Multiplier for a(9) larger than 1000000000.

Crossrefs

Extensions

More terms from Patrick De Geest, Jun 05 2003
a(5)-a(9) corrected by Giovanni Resta, Sep 22 2019
a(10) from David A. Corneth, Sep 22 2019
a(11) from Giovanni Resta, Sep 24 2019
Showing 1-5 of 5 results.