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.

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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.

Links

Crossrefs

Cf. A083150, A068665, A083147, A083151, A083153, A083155.

Extensions

More terms from Patrick De Geest, Jun 05 2003
a(13) from Giovanni Resta, Sep 22 2019
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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